diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 93f47f3..d612379 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -8,7 +8,7 @@ jobs:
   linux:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: messense/maturin-action@v1
       with:
         manylinux: auto
@@ -23,7 +23,7 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: messense/maturin-action@v1
       with:
         command: build
@@ -37,7 +37,7 @@ jobs:
   macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: messense/maturin-action@v1
       with:
         command: build