diff --git a/.github/workflows/mk_docs.yml b/.github/workflows/mk_docs.yml
index 4113562..8b9ea1b 100644
--- a/.github/workflows/mk_docs.yml
+++ b/.github/workflows/mk_docs.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with: