diff --git a/.github/workflows/ai-review.yml b/.github/workflows/ai-review.yml
index 2d47af0..1c1d0a8 100644
--- a/.github/workflows/ai-review.yml
+++ b/.github/workflows/ai-review.yml
@@ -38,7 +38,7 @@ jobs:
        contains(github.event.comment.body, '/ai-review') &&
        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association))
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Assemble the review prompt
         env:
diff --git a/.github/workflows/dco.yml b/.github/workflows/dco.yml
index dc77355..cbfdc0e 100644
--- a/.github/workflows/dco.yml
+++ b/.github/workflows/dco.yml
@@ -9,7 +9,7 @@ jobs:
   dco:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Check for Signed-off-by trailers
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 24bef08..6973e61 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -11,10 +11,10 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.12"
       - name: Run repository validation