diff --git a/bin/steps/pipenv b/bin/steps/pipenv
index e7624dca9f0120206fa597db76835aab793af090..2190e73f143e503dccc3ac1e3496299a1a3cc294 100644
--- a/bin/steps/pipenv
+++ b/bin/steps/pipenv
@@ -11,9 +11,9 @@ if [[ -f Pipfile ]]; then
         /app/.heroku/python/bin/pip install pipenv --upgrade &> /dev/null
 
         if [[ ! -f Pipfile.lock ]]; then
-            bash -c "/app/.heroku/python/bin/pipenv install --system --skip-lock" 2>&1 | indent
+            bash -ic "/app/.heroku/python/bin/pipenv install --system --skip-lock" 2>&1 | indent
         else
-            bash -c "/app/.heroku/python/bin/pipenv install --system" 2>&1 | indent
+            bash -ic "/app/.heroku/python/bin/pipenv install --system" 2>&1 | indent
         fi
         # Install the dependencies.