diff --git a/.github/workflows/deploy_spinx_docs.yml b/.github/workflows/deploy_spinx_docs.yml
index 711cc4e2c..02b87cf75 100644
--- a/.github/workflows/deploy_spinx_docs.yml
+++ b/.github/workflows/deploy_spinx_docs.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - name: Checkout
-      uses: actions/checkout@4
+      uses: actions/checkout@v4
     - name: Setup Python ${{ matrix.python-version }}
       uses: actions/setup-python@master
       with: