diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index c914319..7cdd56b 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -16,7 +16,7 @@ runs:
         printf 'revision=%s\n' "$revision" >> "$GITHUB_OUTPUT"
 
     - name: Check out Hellas
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         repository: hellas-ai/hellas
         ref: ${{ steps.hellas.outputs.revision }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c2be008..f2a7154 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 90
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           path: gate
           persist-credentials: false
@@ -66,7 +66,7 @@ jobs:
     runs-on: macos-15
     timeout-minutes: 120
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           path: gate
           persist-credentials: false
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ccae49e..c49ceb8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -29,7 +29,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           path: gate
           persist-credentials: false