diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3a7894..7f6b3e9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,13 +10,13 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: build disk image
       run: make image.bin
   llvm:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install lld
       run: sudo apt-get install -y lld
     - name: LLVM build
@@ -24,7 +24,7 @@ jobs:
   macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: install llvm
       run: brew install llvm
     - name: LLVM build