diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 37e8dbf..3a8f462 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: coursier/cache-action@v7
       - uses: olafurpg/setup-scala@v14
         with:
@@ -97,7 +97,7 @@ jobs:
       (github.event_name == 'pull_request' &&  contains(github.event.pull_request.labels.*.name, 'publish'))
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0 # full history with tags
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index bda3b13..12e00fb 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -20,7 +20,7 @@ jobs:
         env:
           GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         if: steps.check.outputs.triggered == 'true'
 
       # formatting