diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index 5f2ba7c..fd65374 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -19,7 +19,7 @@ jobs:
         with:
           mdbook-version: 'latest'
 
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
 
       - run: |
           cd book
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 82a9734..6d60803 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -29,7 +29,7 @@ jobs:
         profile: minimal
         override: true
 
-    - uses: Swatinem/rust-cache@v1
+    - uses: Swatinem/rust-cache@v2
 
     - name: check
       uses: actions-rs/cargo@v1
@@ -54,7 +54,7 @@ jobs:
         components: rustfmt, clippy
         override: true
 
-    - uses: Swatinem/rust-cache@v1
+    - uses: Swatinem/rust-cache@v2
 
     - name: fmt
       run: cargo fmt --all -- --check