diff --git a/.github/workflows/gh_pages.yml b/.github/workflows/gh_pages.yml
index e00b6f68..60869e10 100644
--- a/.github/workflows/gh_pages.yml
+++ b/.github/workflows/gh_pages.yml
@@ -31,6 +31,7 @@ jobs:
 
       - name: Compile documentation
         run: |
+          pip install -r ../requirements.txt
           pip install -r requirements.txt
           make clean
           sphinx-build . _build