diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 30b492de..0d1da171 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -181,7 +181,7 @@ jobs:
           exit 1
 
       - name: Cache HuggingFace models
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/huggingface
           key: hf-models-${{ runner.os }}-${{ hashFiles('src/embedder.js') }}
diff --git a/.github/workflows/codegraph-impact.yml b/.github/workflows/codegraph-impact.yml
index e6f3e006..f60b6e38 100644
--- a/.github/workflows/codegraph-impact.yml
+++ b/.github/workflows/codegraph-impact.yml
@@ -11,7 +11,7 @@ jobs:
         with:
           node-version: '22'
       - run: npm install
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: .codegraph/
           key: codegraph-${{ hashFiles('src/**', 'package.json') }}
diff --git a/.github/workflows/embedding-regression.yml b/.github/workflows/embedding-regression.yml
index 32bf31e1..fa6c06d4 100644
--- a/.github/workflows/embedding-regression.yml
+++ b/.github/workflows/embedding-regression.yml
@@ -32,7 +32,7 @@ jobs:
         run: npm install
 
       - name: Cache HuggingFace models
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/huggingface
           key: hf-models-minilm-v1