diff --git a/.github/workflows/sdk-pr.yaml b/.github/workflows/sdk-pr.yaml
index bf1bd0a..912253c 100644
--- a/.github/workflows/sdk-pr.yaml
+++ b/.github/workflows/sdk-pr.yaml
@@ -28,7 +28,7 @@ jobs:
           java-version: ${{ env.JAVA_VERSION }}
       
       - name: Checkout generator repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           repository: "stackitcloud/stackit-sdk-generator"
           ref: "main"
@@ -72,7 +72,7 @@ jobs:
           java-version: ${{ env.JAVA_VERSION }}
       
       - name: Checkout generator repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           repository: "stackitcloud/stackit-sdk-generator"
           ref: "main"
@@ -124,7 +124,7 @@ jobs:
           java-version: ${{ env.JAVA_VERSION }}
       
       - name: Checkout generator repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           repository: "stackitcloud/stackit-sdk-generator"
           ref: "main"