diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 8c40591..79e0c4a 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -35,7 +35,7 @@ jobs:
       
       - name: Cache cargo
         if: ${{ steps.detect.outputs.has_benches == 'true' }}
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 90bdc88..35d83de 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,19 +39,19 @@ jobs:
           components: 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') }}
@@ -83,19 +83,19 @@ jobs:
           toolchain: ${{ matrix.rust }}
       
       - name: Cache cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
       
       - name: Cache cargo index
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
       
       - name: Cache cargo build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: target
           key: ${{ runner.os }}-${{ matrix.rust }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -120,7 +120,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
       
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry