diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 2450389..88c9231 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install stable toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install rust toolchain
         uses: dtolnay/rust-toolchain@master
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install stable toolchain
         uses: dtolnay/rust-toolchain@stable