diff --git a/.github/workflows/check-syntax.yml b/.github/workflows/check-syntax.yml
index 48d7edb..a8510aa 100644
--- a/.github/workflows/check-syntax.yml
+++ b/.github/workflows/check-syntax.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this repository
-        uses: actions/checkout@main
+        uses: actions/checkout@v4.1.4
 
       - name: Download .vale.ini
         run: wget https://raw.githubusercontent.com/fharper/gh-configs/main/.vale.ini -O .vale.ini