diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0ac7f19..cec4acf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
           components: rustfmt, clippy
 
       - name: Cache cargo registry & build
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -85,7 +85,7 @@ jobs:
 
       - name: Cache cargo-audit binary
         id: cache-audit
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ~/.cargo/bin/cargo-audit
           key: ${{ runner.os }}-cargo-audit