diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1255cda..27b9152 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,7 +6,7 @@ jobs:
   rv32emu:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: install-dependencies
       run: | 
             sudo apt-get install build-essential device-tree-compiler
@@ -17,7 +17,7 @@ jobs:
   coding_style:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: coding convention
       run: |
             sudo apt-get install -q -y clang-format-12