diff --git a/.github/workflows/build-contracts.yml b/.github/workflows/build-contracts.yml
old mode 100755
new mode 100644
index 7fe5b4f..a01da20
--- a/.github/workflows/build-contracts.yml
+++ b/.github/workflows/build-contracts.yml
@@ -47,7 +47,7 @@ jobs:
           wasm-opt --version
 
       - name: Cache Cargo registry + build artifacts
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
old mode 100755
new mode 100644
index e4cf0c4..91eaa45
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -102,7 +102,7 @@ jobs:
           components: rust-src
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry