diff --git a/.github/workflows/mvn.yml b/.github/workflows/mvn.yml
index 4b5f842..0a0d914 100644
--- a/.github/workflows/mvn.yml
+++ b/.github/workflows/mvn.yml
@@ -21,7 +21,7 @@ jobs:
     env:
       CONVERT_PATH: /tmp/antlr4-to-bnf-converter
     steps:
-      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
diff --git a/.github/workflows/xcop.yml b/.github/workflows/xcop.yml
index 225b437..4818a06 100644
--- a/.github/workflows/xcop.yml
+++ b/.github/workflows/xcop.yml
@@ -14,7 +14,7 @@ jobs:
   xcop:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
       - uses: g4s8/xcop-action@v1.3
         with:
           files: |