diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9f74317..5e28e51 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           persist-credentials: false
 
@@ -42,7 +42,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/compatibility.yml b/.github/workflows/compatibility.yml
index a8d9748..f9af236 100644
--- a/.github/workflows/compatibility.yml
+++ b/.github/workflows/compatibility.yml
@@ -23,7 +23,7 @@ jobs:
           - latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 4bca6f9..d60fa74 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
         with:
           persist-credentials: false