diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd121d0..9165362 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: DeterminateSystems/determinate-nix-action@v3
 
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index 4c57798..ab92ac2 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -16,7 +16,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: DeterminateSystems/determinate-nix-action@v3