diff --git a/.github/workflows/at_client.yml b/.github/workflows/at_client.yml
index 85a1cc8..d975223 100644
--- a/.github/workflows/at_client.yml
+++ b/.github/workflows/at_client.yml
@@ -18,7 +18,7 @@ jobs:
         working-directory: at_client
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       - name: Set up JDK 8 and maven cache
         uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
         with:
diff --git a/.github/workflows/maven-deploy.yml b/.github/workflows/maven-deploy.yml
index 669e47a..e2cf59f 100644
--- a/.github/workflows/maven-deploy.yml
+++ b/.github/workflows/maven-deploy.yml
@@ -18,7 +18,7 @@ jobs:
         working-directory: at_client
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
     - name: Set up JDK 8
       uses: actions/setup-java@cd89f46ac9d01407894225f350157564c9c7cee2 # v3.12.0
       with:
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
index 087007e..31d124e 100644
--- a/.github/workflows/scorecards.yml
+++ b/.github/workflows/scorecards.yml
@@ -32,7 +32,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           persist-credentials: false