diff --git a/.github/workflows/documentation-branch.yml b/.github/workflows/documentation-branch.yml
index 872157b1..f9c13d29 100644
--- a/.github/workflows/documentation-branch.yml
+++ b/.github/workflows/documentation-branch.yml
@@ -36,6 +36,9 @@ jobs:
         needs: sync
         runs-on: ubuntu-latest
         steps:
+          - name: Checkout
+            uses: actions/checkout@v3
+            
           - name: Build DOxygen documentation
             uses: mattnotmitt/doxygen-action@v1.9.5
             with:
@@ -53,6 +56,9 @@ jobs:
         needs: build-documentation
         runs-on: ubuntu-latest
         steps:
+          - name: Checkout
+            uses: actions/checkout@v3
+            
           - name: Deploy
             uses: peaceiris/actions-gh-pages@v3
             with: