diff --git a/builds/runtimes/pypy-5.3.0 b/builds/runtimes/pypy-5.3.0
new file mode 100755
index 0000000000000000000000000000000000000000..e1c6104c85041219aa078a7243effa554b5fd880
--- /dev/null
+++ b/builds/runtimes/pypy-5.3.0
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy-5.3.0-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy-5.3.0-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy $OUT_PREFIX/bin/python
diff --git a/builds/runtimes/python-2.7.11rc1 b/builds/runtimes/python-2.7.12rc1
similarity index 70%
rename from builds/runtimes/python-2.7.11rc1
rename to builds/runtimes/python-2.7.12rc1
index cbbeb9ed7562ee62198c2f95c6492cee75498289..d2bfe86dfb686cc7d11ea5fc8655f829ab8ca959 100755
--- a/builds/runtimes/python-2.7.11rc1
+++ b/builds/runtimes/python-2.7.12rc1
@@ -5,9 +5,9 @@
 OUT_PREFIX=$1
 
 echo "Building Python..."
-SOURCE_TARBALL='https://www.python.org/ftp/python/2.7.11/Python-2.7.11rc1.tgz'
+SOURCE_TARBALL='https://www.python.org/ftp/python/2.7.12/Python-2.7.12rc1.tgz'
 curl -L $SOURCE_TARBALL | tar xz
-mv Python-2.7.11rc1 src
+mv Python-2.7.12rc1 src
 cd src
 
 ./configure --prefix=$OUT_PREFIX  --with-ensurepip=no