diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4dedb30..abf216a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout tree
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: DeterminateSystems/flake-checker-action@main
       - uses: DeterminateSystems/nix-installer-action@main
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 61a68d5..16096f6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Release
         uses: softprops/action-gh-release@v2
 
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout tree
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> "$GITHUB_ENV"
       - name: Set-up OCaml
         uses: ocaml/setup-ocaml@v3