diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a291a1c..b4fd7e7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,19 +39,19 @@ jobs:
         components: rustfmt, clippy
     
     - name: Cache cargo registry
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ~/.cargo/registry
         key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
     
     - name: Cache cargo index
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ~/.cargo/git
         key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
     
     - name: Cache cargo build
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: target
         key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}