diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7766946..4bfa590 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
       contents: write
       packages: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3d0d9d0..a4d863c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,5 +14,5 @@ jobs:
     runs-on: ubuntu-latest
     container: obolibrary/odklite
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: check-rdfxml cop.ttl