diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6676f5..53460e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Check Nixpkgs
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 1079c58..49faff9 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -14,7 +14,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: DeterminateSystems/determinate-nix-action@v3
       - uses: DeterminateSystems/update-flake-lock@main
         with:
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 17f962a..b0b1fa8 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -9,7 +9,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Validate YAML