diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 87c6a06..a3a1a17 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -32,7 +32,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
 
       - name: Cache cargo
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 682b17d..c6819cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -48,7 +48,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -68,7 +68,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 34766de..71c0131 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -40,7 +40,7 @@ jobs:
       # Bump cache key when any tool version in the install step changes
       - name: Cache mdbook binaries
         id: cache-mdbook
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cargo/bin/mdbook*
           key: mdbook-v2-${{ hashFiles('.github/workflows/docs.yml') }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 61f01b4..195061a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -39,7 +39,7 @@ jobs:
         with:
           targets: ${{ matrix.target }}
 
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry