diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index 96bc110..3024c7d 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -17,7 +17,7 @@ jobs:
         destination: ["platform=iOS Simulator,OS=16.2,name=iPhone 13"]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: CocoaPod Install
         run: |
           cd PersonnummerExample