diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 283607c5..6df991f9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     name: fmt + clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Initialize git submodules
         run: git submodule update --init --recursive
@@ -51,7 +51,7 @@ jobs:
     name: build + test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Initialize git submodules
         run: git submodule update --init --recursive