diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1db5967..ecbefa8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@master
diff --git a/.github/workflows/update-kairos-lab-formula.yml b/.github/workflows/update-kairos-lab-formula.yml
index 62d1036..47b6cc4 100644
--- a/.github/workflows/update-kairos-lab-formula.yml
+++ b/.github/workflows/update-kairos-lab-formula.yml
@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Resolve input values
         id: vars