diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index cf5f737..168afce 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -56,7 +56,7 @@ jobs:
         run: cargo install cargo-fuzz
 
       - name: Cache cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/validate-shared.yml b/.github/workflows/validate-shared.yml
index d422e64..b0b7329 100644
--- a/.github/workflows/validate-shared.yml
+++ b/.github/workflows/validate-shared.yml
@@ -25,19 +25,19 @@ jobs:
           toolchain: stable
 
       - 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') }}
@@ -69,19 +69,19 @@ jobs:
           toolchain: stable
 
       - 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') }}
@@ -113,7 +113,7 @@ jobs:
           toolchain: stable
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry