diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index b516f36..25ab10d 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -23,7 +23,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/version-guard.yml b/.github/workflows/version-guard.yml
index 9cb30fe..36155cb 100644
--- a/.github/workflows/version-guard.yml
+++ b/.github/workflows/version-guard.yml
@@ -16,7 +16,7 @@ jobs:
   check-versions:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Extract versions from all sources
         id: versions