diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c9bfeb377e4cc1dadec5ce3326396acf9eae721b..0413d0bf01233da5ce6251b9fa93cf978fb3a0be 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,6 +11,7 @@ pages:
   - cp static-slides-bundle.tar.gz public/pandas-tutorial-slides-bundle.tar.gz
   - git checkout -f pages
   - git reset --hard origin/pages
+  - sed -i "s/HASH/"`git rev-parse --short HEAD`"/" index.html
   - cp index.html public/
   artifacts:
     paths: