diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 6052a76..78e34eb 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -41,4 +41,5 @@ jobs:
       - name: Build and deploy
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # For authentication with GitHub Actions token
+          DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }}
         run: julia --color=yes --project=docs/ docs/make.jl