diff --git a/.github/workflows/aws-lambda-java-core.yml b/.github/workflows/aws-lambda-java-core.yml
index 267d901c..c8064513 100644
--- a/.github/workflows/aws-lambda-java-core.yml
+++ b/.github/workflows/aws-lambda-java-core.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/aws-lambda-java-events-sdk-transformer.yml b/.github/workflows/aws-lambda-java-events-sdk-transformer.yml
index 66f6b2bf..285848a9 100644
--- a/.github/workflows/aws-lambda-java-events-sdk-transformer.yml
+++ b/.github/workflows/aws-lambda-java-events-sdk-transformer.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/aws-lambda-java-events.yml b/.github/workflows/aws-lambda-java-events.yml
index 04ab53a5..b3b360b4 100644
--- a/.github/workflows/aws-lambda-java-events.yml
+++ b/.github/workflows/aws-lambda-java-events.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/aws-lambda-java-log4j2.yml b/.github/workflows/aws-lambda-java-log4j2.yml
index 7ae54cbe..03718e60 100644
--- a/.github/workflows/aws-lambda-java-log4j2.yml
+++ b/.github/workflows/aws-lambda-java-log4j2.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/aws-lambda-java-profiler.yml b/.github/workflows/aws-lambda-java-profiler.yml
index db9fc225..88032095 100644
--- a/.github/workflows/aws-lambda-java-profiler.yml
+++ b/.github/workflows/aws-lambda-java-profiler.yml
@@ -22,7 +22,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up JDK
         uses: actions/setup-java@v4
diff --git a/.github/workflows/aws-lambda-java-serialization.yml b/.github/workflows/aws-lambda-java-serialization.yml
index c24c48d7..b2700e08 100644
--- a/.github/workflows/aws-lambda-java-serialization.yml
+++ b/.github/workflows/aws-lambda-java-serialization.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/aws-lambda-java-tests.yml b/.github/workflows/aws-lambda-java-tests.yml
index a28bca88..1b818014 100644
--- a/.github/workflows/aws-lambda-java-tests.yml
+++ b/.github/workflows/aws-lambda-java-tests.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
       with:
diff --git a/.github/workflows/repo-sync.yml b/.github/workflows/repo-sync.yml
index 25f05029..300341c1 100644
--- a/.github/workflows/repo-sync.yml
+++ b/.github/workflows/repo-sync.yml
@@ -16,7 +16,7 @@ jobs:
     env:
       IS_CONFIGURED: ${{ secrets.SOURCE_REPO != '' }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         if: ${{ env.IS_CONFIGURED == 'true' }}
       - uses: repo-sync/github-sync@v2
         name: Sync repo to branch
diff --git a/.github/workflows/runtime-interface-client_merge_to_main.yml b/.github/workflows/runtime-interface-client_merge_to_main.yml
index 88f8afde..8909d56b 100644
--- a/.github/workflows/runtime-interface-client_merge_to_main.yml
+++ b/.github/workflows/runtime-interface-client_merge_to_main.yml
@@ -28,7 +28,7 @@ jobs:
       contents: read
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
diff --git a/.github/workflows/runtime-interface-client_pr.yml b/.github/workflows/runtime-interface-client_pr.yml
index 94c03456..c090609c 100644
--- a/.github/workflows/runtime-interface-client_pr.yml
+++ b/.github/workflows/runtime-interface-client_pr.yml
@@ -15,7 +15,7 @@ jobs:
   smoke-test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
@@ -36,7 +36,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up JDK 1.8
       uses: actions/setup-java@v4
diff --git a/.github/workflows/samples.yml b/.github/workflows/samples.yml
index 8346b7c2..2b5e7833 100644
--- a/.github/workflows/samples.yml
+++ b/.github/workflows/samples.yml
@@ -18,7 +18,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up JDK 1.8
         uses: actions/setup-java@v4
         with:
@@ -42,7 +42,7 @@ jobs:
   custom-serialization:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       # Set up both Java 8 and 21
       - name: Set up Java 8 and 21
         uses: actions/setup-java@v4