diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 3a0b851..e563564 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         python-version: ["3.9", "3.13", "pypy3.11"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - uses: actions/setup-python@v5
@@ -59,7 +59,7 @@ jobs:
           - target: armv7
             interpreter: 3.9 3.10 3.11 3.12 3.13 pypy3.9 pypy3.10 pypy3.11
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - name: Build wheels
@@ -93,7 +93,7 @@ jobs:
         # { target: "armv7-unknown-linux-musleabihf", image_tag: "armv7" },
         # { target: "powerpc64le-unknown-linux-musl", image_tag: "ppc64le" },
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - name: Setup QEMU
@@ -119,7 +119,7 @@ jobs:
         target: [x64, x86]
         interpreter: [3.9, "3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - uses: actions/setup-python@v5
@@ -148,7 +148,7 @@ jobs:
           - target: aarch64
             interpreter: 3.9 3.10 3.11 3.12 3.13 pypy3.9 pypy3.10 pypy3.11
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - name: Build wheels
@@ -167,7 +167,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint_and_test
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
       - name: Build sdist