diff --git a/.circleci/config.yml b/.circleci/config.yml
index ad663a7c5845..bcaafc27aa38 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -28,7 +28,7 @@ commands:
           name: Merge with upstream
           command: |
             if ! git remote -v | grep upstream; then
-              git remote add upstream git://github.com/matplotlib/matplotlib.git
+              git remote add upstream https://github.com/matplotlib/matplotlib.git
             fi
             git fetch upstream
             if [[ "$CIRCLE_BRANCH" != "master" ]] && \