diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 75bd4c8..2ab4fa6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     name: CI Validation
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0  # Need full history for some checks
     
@@ -68,7 +68,7 @@ jobs:
       run:
         working-directory: cli
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Set up Go
       uses: actions/setup-go@v5
@@ -94,7 +94,7 @@ jobs:
     needs: ci
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Set up Go
       uses: actions/setup-go@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 27cf82f..0d16a8e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,7 +26,7 @@ jobs:
       version: ${{ steps.version.outputs.version }}
       previous_tag: ${{ steps.previous.outputs.tag }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     
@@ -66,7 +66,7 @@ jobs:
     needs: prepare
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up Go
       uses: actions/setup-go@v5
@@ -112,7 +112,7 @@ jobs:
             runner: windows-latest
     runs-on: ${{ matrix.runner }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Set up Go
       uses: actions/setup-go@v5
@@ -194,7 +194,7 @@ jobs:
     needs: [prepare, build-matrix]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 2c50260..d7e9acd 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -29,7 +29,7 @@ jobs:
     name: Secret Scanning
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0  # Full history for comprehensive scanning
     
@@ -67,7 +67,7 @@ jobs:
       run:
         working-directory: cli
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Set up Go
       uses: actions/setup-go@v5
@@ -129,7 +129,7 @@ jobs:
     name: Static Analysis Security Testing
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Set up Go
       uses: actions/setup-go@v5