diff --git a/.github/workflows/jstruct-cli.yml b/.github/workflows/jstruct-cli.yml
index 69f337a..608ee80 100644
--- a/.github/workflows/jstruct-cli.yml
+++ b/.github/workflows/jstruct-cli.yml
@@ -71,7 +71,7 @@ jobs:
           sudo apt-get install -y gcc-aarch64-linux-gnu
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index d881f74..bdc7a3f 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -46,7 +46,7 @@ jobs:
           components: rustfmt, clippy
 
       - name: Cache cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry