diff --git a/bin/steps/cryptography b/bin/steps/cryptography
index 080360fc4f8ef8dd6b84bd1b7b6407217c735483..2cb3bac429394d8e2518b98a6fc311b9083443b8 100755
--- a/bin/steps/cryptography
+++ b/bin/steps/cryptography
@@ -10,7 +10,7 @@
 # This script is invoked by [`bin/compile`](/).
 
 # The location of the pre-compiled cryptography binary.
-VENDORED_LIBFFI="http://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libffi.tar.gz"
+VENDORED_LIBFFI="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libffi.tar.gz"
 
 PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
 
diff --git a/bin/steps/pylibmc b/bin/steps/pylibmc
index 18983029e6548305c456ae639c20a86d2a2834f7..b4bde751783dda7390b5cd07dd29a3c7e1994265 100755
--- a/bin/steps/pylibmc
+++ b/bin/steps/pylibmc
@@ -10,7 +10,7 @@
 # This script is invoked by [`bin/compile`](/).
 
 # The location of the pre-compiled libmemcached binary.
-VENDORED_MEMCACHED="http://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libmemcache.tar.gz"
+VENDORED_MEMCACHED="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libmemcache.tar.gz"
 
 # Syntax sugar.
 source $BIN_DIR/utils
diff --git a/bin/steps/python b/bin/steps/python
index aeddad77199af771dde50f9cd4a8daeb9a32905c..3c22d63f34fbf0f7908e89c40189bdcff0e322ce 100755
--- a/bin/steps/python
+++ b/bin/steps/python
@@ -29,7 +29,7 @@ if [ ! "$SKIP_INSTALL" ]; then
     # Prepare destination directory.
     mkdir -p .heroku/python
 
-    curl http://lang-python.s3.amazonaws.com/$STACK/runtimes/$PYTHON_VERSION.tar.gz -s | tar zxv -C .heroku/python &> /dev/null
+    curl https://lang-python.s3.amazonaws.com/$STACK/runtimes/$PYTHON_VERSION.tar.gz -s | tar zxv -C .heroku/python &> /dev/null
     if [[ $? != 0 ]] ; then
       puts-warn "Requested runtime ($PYTHON_VERSION) is not available for this stack ($STACK)."
       puts-warn "Aborting.  More info: https://devcenter.heroku.com/articles/python-support"
diff --git a/builds/libraries/autoconf b/builds/libraries/autoconf
index 50d7d82e88e63fc5dcf9249564957641c115c6b6..f18794accc62bd4650167a62f606c22d17a4842a 100755
--- a/builds/libraries/autoconf
+++ b/builds/libraries/autoconf
@@ -6,7 +6,7 @@ OUT_PREFIX=$1
 echo "Building autoconf..."
 
 
-SOURCE_TARBALL='http://ftp.gnu.org/gnu/autoconf/autoconf-2.68.tar.gz'
+SOURCE_TARBALL='https://ftp.gnu.org/gnu/autoconf/autoconf-2.68.tar.gz'
 curl -L $SOURCE_TARBALL | tar xz
 
 cd autoconf-2.68
diff --git a/builds/libraries/libffi b/builds/libraries/libffi
index 51789cfd4ef33169965d1bbea79baed445a5592f..c6cb00a9be9ead3ba23ef4fcf0fc0081fb3b9dc2 100755
--- a/builds/libraries/libffi
+++ b/builds/libraries/libffi
@@ -10,7 +10,7 @@ hash -r
 
 echo "Building libffi..."
 
-SOURCE_TARBALL='http://cl.ly/2s1t1u3v0N0I/download/libffi-3.1.tar'
+SOURCE_TARBALL='https://cl.ly/2s1t1u3v0N0I/download/libffi-3.1.tar'
 
 curl -L $SOURCE_TARBALL | tar x
 
diff --git a/builds/libraries/sqlite b/builds/libraries/sqlite
index 026a448e9c1ab5a61af0454a37d9c13deb18bbb4..8ed1720d87c4ec3b37d9a60db18de3fbfa7fe506 100755
--- a/builds/libraries/sqlite
+++ b/builds/libraries/sqlite
@@ -6,7 +6,7 @@ OUT_PREFIX=$1
 echo "Building SQLite..."
 
 
-SOURCE_TARBALL='http://www.sqlite.org/sqlite-autoconf-3070900.tar.gz'
+SOURCE_TARBALL='https://www.sqlite.org/sqlite-autoconf-3070900.tar.gz'
 
 curl $SOURCE_TARBALL | tar xz
 # jx
diff --git a/builds/runtimes/python-2.4.4 b/builds/runtimes/python-2.4.4
index 84addd6f76dffc44011cdf0ceb00b0b278f36cda..a790a9033722f0eddec53a931f58d55890d4bca2 100755
--- a/builds/runtimes/python-2.4.4
+++ b/builds/runtimes/python-2.4.4
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.4.4/Python-2.4.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.4.4/Python-2.4.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.4.4 src
 cd src
diff --git a/builds/runtimes/python-2.4.5 b/builds/runtimes/python-2.4.5
index b4555d0e115c18506347bf4ff721fa5603e3d315..d4fbb05c0eb824575a6db9864027f0b4017e6dfd 100755
--- a/builds/runtimes/python-2.4.5
+++ b/builds/runtimes/python-2.4.5
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.4.5/Python-2.4.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.4.5/Python-2.4.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.4.5 src
 cd src
diff --git a/builds/runtimes/python-2.4.6 b/builds/runtimes/python-2.4.6
index ffebad19ffdc29ef25e97516776be4ddf923f5f3..868257ff0c5f0b5296926ddd2214dadf57f3246a 100755
--- a/builds/runtimes/python-2.4.6
+++ b/builds/runtimes/python-2.4.6
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.4.6/Python-2.4.6.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.4.6/Python-2.4.6.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.4.6 src
 cd src
diff --git a/builds/runtimes/python-2.5.0 b/builds/runtimes/python-2.5.0
index 2b31b96077efa5934a0c69190d9bad59a37741c1..5a1f7e8cda1794feaa78a0747ee3682a691a3720 100755
--- a/builds/runtimes/python-2.5.0
+++ b/builds/runtimes/python-2.5.0
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5/Python-2.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5/Python-2.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5 src
 cd src
diff --git a/builds/runtimes/python-2.5.1 b/builds/runtimes/python-2.5.1
index 775b6130def8a6707f1f71dfa1203f2d94e9c38b..af1a5fd5a3fd41ef2eb54069e91256c2f4fe203a 100755
--- a/builds/runtimes/python-2.5.1
+++ b/builds/runtimes/python-2.5.1
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.1/Python-2.5.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.1/Python-2.5.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.1 src
 cd src
diff --git a/builds/runtimes/python-2.5.2 b/builds/runtimes/python-2.5.2
index 84bb09422fd442fd9ed7dd7f0ba3f211eb0a8f86..24df701f0fe80d982ac5f3a84d8b2793d39fad40 100755
--- a/builds/runtimes/python-2.5.2
+++ b/builds/runtimes/python-2.5.2
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.2/Python-2.5.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.2/Python-2.5.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.2 src
 cd src
diff --git a/builds/runtimes/python-2.5.3 b/builds/runtimes/python-2.5.3
index 7ff33b445767ab516ba58baaf57f2415e7b22e42..ed74ca10d3e7a2e69442080a3d3fe22b0363f222 100755
--- a/builds/runtimes/python-2.5.3
+++ b/builds/runtimes/python-2.5.3
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.3/Python-2.5.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.3/Python-2.5.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.3 src
 cd src
diff --git a/builds/runtimes/python-2.5.4 b/builds/runtimes/python-2.5.4
index 063c4f628a334d8f0bb17be40286a47017fcb9b7..ab962050029c69c925cb2d7eba90d89e84aa8bc2 100755
--- a/builds/runtimes/python-2.5.4
+++ b/builds/runtimes/python-2.5.4
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.4/Python-2.5.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.4/Python-2.5.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.4 src
 cd src
diff --git a/builds/runtimes/python-2.5.5 b/builds/runtimes/python-2.5.5
index 9c9ee091fae9ef9de44c8bc48b72561c941badc1..3d56079f5f9b20c79c58b074d47df9372871275a 100755
--- a/builds/runtimes/python-2.5.5
+++ b/builds/runtimes/python-2.5.5
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.5/Python-2.5.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.5/Python-2.5.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.5 src
 cd src
diff --git a/builds/runtimes/python-2.5.6 b/builds/runtimes/python-2.5.6
index 6da7ca45b86833de07596b42dd213060fd265d58..551eaacd50aa0e1237231a05628bee5126cb1d56 100755
--- a/builds/runtimes/python-2.5.6
+++ b/builds/runtimes/python-2.5.6
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.5.6/Python-2.5.6.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.5.6/Python-2.5.6.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.5.6 src
 cd src
diff --git a/builds/runtimes/python-2.6.0 b/builds/runtimes/python-2.6.0
index 353abc6a7fc69aac02affb854b161cec25eaa3da..e93b0c7bc8651026381947de7d20223a75e3649a 100755
--- a/builds/runtimes/python-2.6.0
+++ b/builds/runtimes/python-2.6.0
@@ -10,7 +10,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://www.python.org/ftp/python/2.6/Python-2.6.tar.bz2'
+SOURCE_TARBALL='https://www.python.org/ftp/python/2.6/Python-2.6.tar.bz2'
 curl -L $SOURCE_TARBALL | tar jx
 mv Python-2.6 src
 cd src
diff --git a/builds/runtimes/python-2.6.1 b/builds/runtimes/python-2.6.1
index e32cdffac20e52615410b998327c00c22bb85bc2..800b59fbe8b15cd84dd626b5e11785710817bd10 100755
--- a/builds/runtimes/python-2.6.1
+++ b/builds/runtimes/python-2.6.1
@@ -10,7 +10,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.1/Python-2.6.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.1/Python-2.6.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.1 src
 cd src
diff --git a/builds/runtimes/python-2.6.2 b/builds/runtimes/python-2.6.2
index dcce19c97989db69eb93dd4e1760cdc5c13b764d..37c35180afd8a0de029205aa46d1b85ebb586795 100755
--- a/builds/runtimes/python-2.6.2
+++ b/builds/runtimes/python-2.6.2
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.2/Python-2.6.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.2/Python-2.6.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.2 src
 cd src
diff --git a/builds/runtimes/python-2.6.3 b/builds/runtimes/python-2.6.3
index 71839b0a89a7a7ffdb61cb8c2f4404cd43608b69..b696c10db022e434b9cac7f0ba04a698e06709e2 100755
--- a/builds/runtimes/python-2.6.3
+++ b/builds/runtimes/python-2.6.3
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.3/Python-2.6.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.3/Python-2.6.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.3 src
 cd src
diff --git a/builds/runtimes/python-2.6.4 b/builds/runtimes/python-2.6.4
index c1b4f89c50a94b42799a0e165f1a60023f0023eb..c41d10a49bb4229372a0343add62a23fff0b42d4 100755
--- a/builds/runtimes/python-2.6.4
+++ b/builds/runtimes/python-2.6.4
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.4/Python-2.6.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.4/Python-2.6.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.4 src
 cd src
diff --git a/builds/runtimes/python-2.6.5 b/builds/runtimes/python-2.6.5
index c681bffa5c366b59e470f13ea65a90ce7fe7d614..9dc710c8975f80cfb088f762b56fb3e2d38d905a 100755
--- a/builds/runtimes/python-2.6.5
+++ b/builds/runtimes/python-2.6.5
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.5/Python-2.6.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.5/Python-2.6.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.5 src
 cd src
diff --git a/builds/runtimes/python-2.6.6 b/builds/runtimes/python-2.6.6
index b5cb8ecfcb49f03d154251fa6c6278d71079b4ba..f8e9bf5cdf2e9460adec0346db8e0f140cb57208 100755
--- a/builds/runtimes/python-2.6.6
+++ b/builds/runtimes/python-2.6.6
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.6/Python-2.6.6.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.6/Python-2.6.6.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.6 src
 cd src
diff --git a/builds/runtimes/python-2.6.7 b/builds/runtimes/python-2.6.7
index 0eb587b2b2c9a69c35b6ce899582dd1490b17d7f..50512eb82c9937fb45a79a7d93b5837a5e8698b9 100755
--- a/builds/runtimes/python-2.6.7
+++ b/builds/runtimes/python-2.6.7
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.7/Python-2.6.7.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.7/Python-2.6.7.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.7 src
 cd src
diff --git a/builds/runtimes/python-2.6.8 b/builds/runtimes/python-2.6.8
index ed071fc977314a1d81c94b504f15af43a609450b..216ffb8c05095c42bd95039032e23f3135585557 100755
--- a/builds/runtimes/python-2.6.8
+++ b/builds/runtimes/python-2.6.8
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.8/Python-2.6.8.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.8/Python-2.6.8.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.8 src
 cd src
diff --git a/builds/runtimes/python-2.6.9 b/builds/runtimes/python-2.6.9
index dfa52839203c671fee5ab585a5893c32e4f72b5f..85837fc0a28a49fa46829614faf6b71f1635f9da 100755
--- a/builds/runtimes/python-2.6.9
+++ b/builds/runtimes/python-2.6.9
@@ -8,7 +8,7 @@ OUT_PREFIX=$1
 unset LANG PYTHONHOME PYTHONPATH
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.6.9/Python-2.6.9.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.6.9/Python-2.6.9.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.6.9 src
 cd src
diff --git a/builds/runtimes/python-2.7.0 b/builds/runtimes/python-2.7.0
index 17559ec88623d1e63536201733bd4c5dce55ae32..fbd7e75bd6b54438d161e7741e35f66ed42449b3 100755
--- a/builds/runtimes/python-2.7.0
+++ b/builds/runtimes/python-2.7.0
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7/Python-2.7.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7/Python-2.7.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7 src
 cd src
diff --git a/builds/runtimes/python-2.7.1 b/builds/runtimes/python-2.7.1
index 06b03af48b7027752c820408b49457b3d62921af..2bf552533ab0381c2ce054c403fe1c5272aa30b7 100755
--- a/builds/runtimes/python-2.7.1
+++ b/builds/runtimes/python-2.7.1
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.1/Python-2.7.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.1/Python-2.7.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.1 src
 cd src
diff --git a/builds/runtimes/python-2.7.2 b/builds/runtimes/python-2.7.2
index f89af12a162769225772f98835f4205963f57aac..2bd6c4a6a33a609916ea9a062d5b3407582a6b07 100755
--- a/builds/runtimes/python-2.7.2
+++ b/builds/runtimes/python-2.7.2
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.2/Python-2.7.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.2 src
 cd src
diff --git a/builds/runtimes/python-2.7.3 b/builds/runtimes/python-2.7.3
index d139ca38d9ab559f1d9650548575c630863484ad..90df6977b96f40f6ea2b36977cc23d1ab14c523f 100755
--- a/builds/runtimes/python-2.7.3
+++ b/builds/runtimes/python-2.7.3
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.3/Python-2.7.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.3/Python-2.7.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.3 src
 cd src
diff --git a/builds/runtimes/python-2.7.4 b/builds/runtimes/python-2.7.4
index 08b04e0ed4dab8f7b99a7eb9291787ce957fb492..c22c837dc48db394af398274042462f1824e3dbf 100755
--- a/builds/runtimes/python-2.7.4
+++ b/builds/runtimes/python-2.7.4
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.4/Python-2.7.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.4/Python-2.7.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.4 src
 cd src
diff --git a/builds/runtimes/python-2.7.5 b/builds/runtimes/python-2.7.5
index 520ec0131723a2b7e8999c69607932d03cc6212e..659d81ddfc72ac08490522d80d80fa3d1759c507 100755
--- a/builds/runtimes/python-2.7.5
+++ b/builds/runtimes/python-2.7.5
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.5/Python-2.7.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.5/Python-2.7.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.5 src
 cd src
diff --git a/builds/runtimes/python-2.7.6 b/builds/runtimes/python-2.7.6
index 098ea0f58f31e85c01528eed9b07d3e906dbca48..c5b5ce6cec84f55b39a31103fda87ecb19e56506 100755
--- a/builds/runtimes/python-2.7.6
+++ b/builds/runtimes/python-2.7.6
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.6/Python-2.7.6.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.6/Python-2.7.6.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.6 src
 cd src
diff --git a/builds/runtimes/python-2.7.7 b/builds/runtimes/python-2.7.7
index 7ff982fd4decc917af4876b6a545789a54910eb2..2a9c2b23c6f5510b017bb9255ea9bf81e92e6add 100755
--- a/builds/runtimes/python-2.7.7
+++ b/builds/runtimes/python-2.7.7
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.7/Python-2.7.7.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.7/Python-2.7.7.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.7 src
 cd src
diff --git a/builds/runtimes/python-2.7.7-shared b/builds/runtimes/python-2.7.7-shared
index 2c6a60e1fa271749a98113e5033d2353d6433e7d..6ced82848d0240743798da4aabb3de32a55ad01b 100755
--- a/builds/runtimes/python-2.7.7-shared
+++ b/builds/runtimes/python-2.7.7-shared
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.7/Python-2.7.7.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.7/Python-2.7.7.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.7 src
 cd src
diff --git a/builds/runtimes/python-2.7.8 b/builds/runtimes/python-2.7.8
index 070098911eb115d3a882aaa6cf1fac7c560ce4b3..2b7c3358dc7b2312e94f0bc15105deccc887d42a 100755
--- a/builds/runtimes/python-2.7.8
+++ b/builds/runtimes/python-2.7.8
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.8/Python-2.7.8.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.8/Python-2.7.8.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.8 src
 cd src
diff --git a/builds/runtimes/python-2.7.8-shared b/builds/runtimes/python-2.7.8-shared
index 1baeff972d77705687483d5aab39539eaa0b2553..cb30bed2a44c031dd7e76e746e78d89037204f74 100755
--- a/builds/runtimes/python-2.7.8-shared
+++ b/builds/runtimes/python-2.7.8-shared
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.8/Python-2.7.8.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.8/Python-2.7.8.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.8 src
 cd src
diff --git a/builds/runtimes/python-2.7.9 b/builds/runtimes/python-2.7.9
index d3fbba577465eeaed9f57e67901163753b1d2567..e94dedeb332d39dcd5ed11a12b1d7ad1938a6388 100755
--- a/builds/runtimes/python-2.7.9
+++ b/builds/runtimes/python-2.7.9
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/2.7.9/Python-2.7.9.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.9/Python-2.7.9.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-2.7.9 src
 cd src
diff --git a/builds/runtimes/python-3.1.0 b/builds/runtimes/python-3.1.0
index effbf441491fb51b34ebd51f2b87fd582fee8d6a..9fee5638a6e10a8ca3d15f5b8453ae4f7715c2e6 100755
--- a/builds/runtimes/python-3.1.0
+++ b/builds/runtimes/python-3.1.0
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1/Python-3.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1/Python-3.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1 src
 cd src
diff --git a/builds/runtimes/python-3.1.1 b/builds/runtimes/python-3.1.1
index bf5698af4e7c77d0fc37a78341892ffe0ad8b07e..df9ad8f19ce7d864421fa1d949606a9ed46cd631 100755
--- a/builds/runtimes/python-3.1.1
+++ b/builds/runtimes/python-3.1.1
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.1/Python-3.1.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1.1/Python-3.1.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1.1 src
 cd src
diff --git a/builds/runtimes/python-3.1.2 b/builds/runtimes/python-3.1.2
index 2544ba2688eb0bee5748172cc2bac8c89fc89e33..c9c54f72c395bf042a2a70d059409cdd963122ad 100755
--- a/builds/runtimes/python-3.1.2
+++ b/builds/runtimes/python-3.1.2
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.2/Python-3.1.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1.2/Python-3.1.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1.2 src
 cd src
diff --git a/builds/runtimes/python-3.1.3 b/builds/runtimes/python-3.1.3
index 7af8e662f6ae3fb7c560e5adc7db51c5141458d4..e28a98d76090e51a188d666491d9d6359bc82035 100755
--- a/builds/runtimes/python-3.1.3
+++ b/builds/runtimes/python-3.1.3
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.3/Python-3.1.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1.3/Python-3.1.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1.3 src
 cd src
diff --git a/builds/runtimes/python-3.1.4 b/builds/runtimes/python-3.1.4
index e1050d97f1fff568df27ce94b43da5510c3d128c..1b587e70d48f0832aba0e99e987f2d27eb5f93c7 100755
--- a/builds/runtimes/python-3.1.4
+++ b/builds/runtimes/python-3.1.4
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.4/Python-3.1.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1.4/Python-3.1.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1.4 src
 cd src
diff --git a/builds/runtimes/python-3.1.5 b/builds/runtimes/python-3.1.5
index f538d93c445df51c31369a5688e36ac5fb726aa0..0793380891dac3ff4b118a36c519ad9d9ece629d 100755
--- a/builds/runtimes/python-3.1.5
+++ b/builds/runtimes/python-3.1.5
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.1.5/Python-3.1.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.1.5/Python-3.1.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.1.5 src
 cd src
diff --git a/builds/runtimes/python-3.2.0 b/builds/runtimes/python-3.2.0
index f4c5ce231632191e0db8b7330e25089bef8d1d0f..ab76e7f6ed675d00f97f7182b2dcaed73c0be850 100755
--- a/builds/runtimes/python-3.2.0
+++ b/builds/runtimes/python-3.2.0
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2/Python-3.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2/Python-3.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2 src
 cd src
diff --git a/builds/runtimes/python-3.2.1 b/builds/runtimes/python-3.2.1
index 68392d09fcdc9c822f7fa78497744c8b8daafbf7..db654010bf1581fd892a5df3c909119a154fa3fe 100755
--- a/builds/runtimes/python-3.2.1
+++ b/builds/runtimes/python-3.2.1
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2.1/Python-3.2.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2.1/Python-3.2.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2.1 src
 cd src
diff --git a/builds/runtimes/python-3.2.2 b/builds/runtimes/python-3.2.2
index dd22cab778d52bf3d5bed79b5bbed5a5e58bc452..8b023eead6b5f474be442baf1d9122e18b145900 100755
--- a/builds/runtimes/python-3.2.2
+++ b/builds/runtimes/python-3.2.2
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2.2/Python-3.2.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2.2/Python-3.2.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2.2 src
 cd src
diff --git a/builds/runtimes/python-3.2.3 b/builds/runtimes/python-3.2.3
index 9d887e6e40f79c4c68b0da00759374ea32d97d47..56787be6b296f1b91e6e643fe39145bda1fe14f5 100755
--- a/builds/runtimes/python-3.2.3
+++ b/builds/runtimes/python-3.2.3
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2.3/Python-3.2.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2.3/Python-3.2.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2.3 src
 cd src
diff --git a/builds/runtimes/python-3.2.4 b/builds/runtimes/python-3.2.4
index 20d2050d7ab29ddef29601c5c461726cacfcf712..3cd976365f332e34c4bb0a8f578450d87c7b9aae 100755
--- a/builds/runtimes/python-3.2.4
+++ b/builds/runtimes/python-3.2.4
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2.4/Python-3.2.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2.4/Python-3.2.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2.4 src
 cd src
diff --git a/builds/runtimes/python-3.2.5 b/builds/runtimes/python-3.2.5
index 1c4b18e68b9227397cc53c8c22401a826266a912..cf856df09f3a6623988f9a559d8fa4be67d83eb4 100755
--- a/builds/runtimes/python-3.2.5
+++ b/builds/runtimes/python-3.2.5
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.2.5/Python-3.2.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.2.5/Python-3.2.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.2.5 src
 cd src
diff --git a/builds/runtimes/python-3.3.0 b/builds/runtimes/python-3.3.0
index 436fd92eef905b6a346658ff8c649dc3f08b373b..4669dcacbea841e166f0df05df0251996a21555e 100755
--- a/builds/runtimes/python-3.3.0
+++ b/builds/runtimes/python-3.3.0
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.0/Python-3.3.0.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.0/Python-3.3.0.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.0 src
 cd src
diff --git a/builds/runtimes/python-3.3.1 b/builds/runtimes/python-3.3.1
index fcf234e0f1dc4594ca9122b51804dca1dabd832f..96b7ad14953e6417fe48a030c7e20fda56ed5bd7 100755
--- a/builds/runtimes/python-3.3.1
+++ b/builds/runtimes/python-3.3.1
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.1/Python-3.3.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.1/Python-3.3.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.1 src
 cd src
diff --git a/builds/runtimes/python-3.3.2 b/builds/runtimes/python-3.3.2
index 076bf757b8aaae0c47d0fd0228e59182249da531..319428570d3a6970cecfdb8ec90640e4cb91bf21 100755
--- a/builds/runtimes/python-3.3.2
+++ b/builds/runtimes/python-3.3.2
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.2/Python-3.3.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.2/Python-3.3.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.2 src
 cd src
diff --git a/builds/runtimes/python-3.3.3 b/builds/runtimes/python-3.3.3
index 50fe9b8788d07cc863ae36ac531883a3960c89fc..cac66eb3c9c8dbb420022a65d811ae7cea6f8891 100755
--- a/builds/runtimes/python-3.3.3
+++ b/builds/runtimes/python-3.3.3
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.3/Python-3.3.3.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.3/Python-3.3.3.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.3 src
 cd src
diff --git a/builds/runtimes/python-3.3.4 b/builds/runtimes/python-3.3.4
index d07a5c6b36884fb37022326439614fbceb7d7ed0..876066bf68889e13d402d614fe8dd19bf96a8d6f 100755
--- a/builds/runtimes/python-3.3.4
+++ b/builds/runtimes/python-3.3.4
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.4/Python-3.3.4.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.4/Python-3.3.4.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.4 src
 cd src
diff --git a/builds/runtimes/python-3.3.5 b/builds/runtimes/python-3.3.5
index df64fd8b2fdee6350e75788d6a9f1a92d6377ec7..b2ac8b275ea38e5b038f0bb42c2067e7807e672b 100755
--- a/builds/runtimes/python-3.3.5
+++ b/builds/runtimes/python-3.3.5
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.5/Python-3.3.5.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.5/Python-3.3.5.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.5 src
 cd src
diff --git a/builds/runtimes/python-3.3.6 b/builds/runtimes/python-3.3.6
index 2d7b93d776377ec7e1b30ba8cf6beeccaa498e2b..81eb0244b85072cdc6cc77f4bf2adaea11770e01 100755
--- a/builds/runtimes/python-3.3.6
+++ b/builds/runtimes/python-3.3.6
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.3.6/Python-3.3.6.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.3.6/Python-3.3.6.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.3.6 src
 cd src
diff --git a/builds/runtimes/python-3.4.0 b/builds/runtimes/python-3.4.0
index 8e4d80e34a2dcb359fa708210fe89e3ab4ea3eb2..df2036d512c597afa5e3c2d923808484648d39a8 100755
--- a/builds/runtimes/python-3.4.0
+++ b/builds/runtimes/python-3.4.0
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.4.0/Python-3.4.0.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.4.0/Python-3.4.0.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.4.0 src
 cd src
diff --git a/builds/runtimes/python-3.4.1 b/builds/runtimes/python-3.4.1
index 352245a56b339f0bbd42660781496cdde6ce1dc4..f360cfd3fa79a32728f73c070405e12cb93eb647 100755
--- a/builds/runtimes/python-3.4.1
+++ b/builds/runtimes/python-3.4.1
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.4.1/Python-3.4.1.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.4.1/Python-3.4.1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.4.1 src
 cd src
diff --git a/builds/runtimes/python-3.4.2 b/builds/runtimes/python-3.4.2
index 67858ad2e3cda51ce349d028383fd6e6cf4b7113..1d633f199f192bfbf0cf6739a404129a16d293d8 100755
--- a/builds/runtimes/python-3.4.2
+++ b/builds/runtimes/python-3.4.2
@@ -5,7 +5,7 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='http://python.org/ftp/python/3.4.2/Python-3.4.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.4.2/Python-3.4.2.tgz'
 curl -L $SOURCE_TARBALL | tar xz
 mv Python-3.4.2 src
 cd src