diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index b351d0c..1865004 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -55,7 +55,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v4.1.1"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@2.26.0"
diff --git a/.github/workflows/release-on-milestone-closed.yml b/.github/workflows/release-on-milestone-closed.yml
index 9f55507..068dfc2 100644
--- a/.github/workflows/release-on-milestone-closed.yml
+++ b/.github/workflows/release-on-milestone-closed.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v4.1.1"
 
       - name: "Release"
         uses: "laminas/automatic-releases@v1"