diff --git a/.github/workflows/fixture-interop.yml b/.github/workflows/fixture-interop.yml
index 8db18999..6c4c4413 100644
--- a/.github/workflows/fixture-interop.yml
+++ b/.github/workflows/fixture-interop.yml
@@ -108,7 +108,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
-      - uses: actions/cache@v4
+      - uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -188,7 +188,7 @@ jobs:
           java-version: '21'
 
       - name: Cache Gradle
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.gradle/caches