diff --git a/bin/steps/pipenv b/bin/steps/pipenv
index 31b479ba1490e3f23af2ed1e2571cf9e50ca74d7..72419d01d8d0d48ea9dd641f7844a1c43df55395 100755
--- a/bin/steps/pipenv
+++ b/bin/steps/pipenv
@@ -56,7 +56,7 @@ if [ ! "$SKIP_PIPENV_INSTALL" ]; then
         export PIPENV_VERSION="2018.5.18"
 
         # Install pipenv.
-        /app/.heroku/python/bin/pip install pipenv==$PIPENV_VERSION --upgrade &> /dev/null
+        /app/.heroku/python/bin/pip install pipenv==$PIPENV_VERSION --upgrade --upgrade-strategy only-if-needed &> /dev/null
 
         # Install the dependencies.
         if [[ ! -f Pipfile.lock ]]; then