diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dbd9815..5358a9d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,19 +28,19 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: target
           key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
@@ -78,7 +78,7 @@ jobs:
           components: clippy
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -108,7 +108,7 @@ jobs:
           toolchain: ${{ matrix.rust }}
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -192,7 +192,7 @@ jobs:
           targets: ${{ matrix.target }}
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -263,7 +263,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/quick-check.yml b/.github/workflows/quick-check.yml
index 2a68b2f..e3149cb 100644
--- a/.github/workflows/quick-check.yml
+++ b/.github/workflows/quick-check.yml
@@ -28,7 +28,7 @@ jobs:
           components: rustfmt, clippy
 
       - name: 📦 Cache cargo dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index dd4260f..74aa804 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -30,7 +30,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: 📦 Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -61,7 +61,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: 📦 Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -83,7 +83,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: 📦 Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -105,7 +105,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
 
       - name: 📦 Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry