diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7f0b2d9..10641d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       # mlx-swift's Metal shaders + the MLX C++ sources are expensive to
       # compile; cache the SwiftPM and Xcode build products across runs.
       - name: Cache build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             .build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a00166e..d6a8eab 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -32,7 +32,7 @@ jobs:
       # mlx-swift's Metal shaders + the MLX C++ sources are expensive to
       # compile; cache the SwiftPM and Xcode build products across runs.
       - name: Cache build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             .build