diff --git a/.github/workflows/benchmark-regression.yml b/.github/workflows/benchmark-regression.yml
index ed65ee3..56c191c 100644
--- a/.github/workflows/benchmark-regression.yml
+++ b/.github/workflows/benchmark-regression.yml
@@ -25,7 +25,7 @@ jobs:
           toolchain: stable
 
       - name: Cache dependencies
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: |
             ~/.cargo/registry
@@ -37,7 +37,7 @@ jobs:
         run: cargo install cargo-criterion || true
 
       - name: Download baseline benchmarks
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: target/criterion
           key: benchmark-baseline-${{ github.base_ref || 'main' }}
@@ -134,7 +134,7 @@ jobs:
 
       - name: Store updated baseline
         if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master'
-        uses: actions/cache/save@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: target/criterion
           key: benchmark-baseline-${{ github.ref_name }}-${{ github.sha }}
diff --git a/.github/workflows/fuzz-testing.yml b/.github/workflows/fuzz-testing.yml
index 5aaef5b..53188f0 100644
--- a/.github/workflows/fuzz-testing.yml
+++ b/.github/workflows/fuzz-testing.yml
@@ -39,7 +39,7 @@ jobs:
           tool: cargo-fuzz@0.12.0
 
       - name: Cache fuzz corpus
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: fuzz/corpus
           key: ${{ runner.os }}-fuzz-corpus-${{ github.sha }}
diff --git a/.github/workflows/mutation-testing.yml b/.github/workflows/mutation-testing.yml
index d96a306..2857aa9 100644
--- a/.github/workflows/mutation-testing.yml
+++ b/.github/workflows/mutation-testing.yml
@@ -34,19 +34,19 @@ jobs:
           toolchain: stable
 
       - name: Cache cargo registry
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache target directory
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: target
           key: ${{ runner.os }}-target-mutation-${{ hashFiles('**/Cargo.lock') }}