diff --git a/.github/workflows/build-quantize.yml b/.github/workflows/build-quantize.yml
index 8036a3a34..69ab2c346 100644
--- a/.github/workflows/build-quantize.yml
+++ b/.github/workflows/build-quantize.yml
@@ -31,11 +31,18 @@ jobs:
       - name: Clone
         uses: actions/checkout@v6
 
+      - name: ccache
+        uses: ggml-org/ccache-action@v1.2.21
+        with:
+          key: quantize-ubuntu-22
+          evict-old-files: 1d
+          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
       - name: Test quantize
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
         run: |
           ./models/download-ggml-model.sh tiny.en
-          cmake -B build
+          cmake -B build -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
           cmake --build build --config Release
           ./build/bin/whisper-quantize models/ggml-tiny.en.bin models/ggml-tiny.en-q4_0.bin q4_0
diff --git a/.github/workflows/build-vad.yml b/.github/workflows/build-vad.yml
index 71e910a3f..3c5ebec20 100644
--- a/.github/workflows/build-vad.yml
+++ b/.github/workflows/build-vad.yml
@@ -31,10 +31,17 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
 
+      - name: ccache
+        uses: ggml-org/ccache-action@v1.2.21
+        with:
+          key: vad-ubuntu-latest
+          evict-old-files: 1d
+          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
       - name: Build
         shell: bash
         run: |
-          cmake -B build
+          cmake -B build -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
           cmake --build build --config Release
 
       - name: Test
diff --git a/.github/workflows/build-wasm.yml b/.github/workflows/build-wasm.yml
index d2891eda9..45c77c0be 100644
--- a/.github/workflows/build-wasm.yml
+++ b/.github/workflows/build-wasm.yml
@@ -45,7 +45,21 @@ jobs:
       - name: Verify
         run: emcc -v
 
+      - name: ccache
+        uses: ggml-org/ccache-action@v1.2.21
+        with:
+          key: wasm-ubuntu-22
+          evict-old-files: 1d
+          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+
       - name: Build
+        env:
+          CCACHE_SLOPPINESS: time_macros,include_file_mtime,include_file_ctime
+          CCACHE_COMPILERCHECK: content
         run: |
-          emcmake cmake . -DCMAKE_BUILD_TYPE=${{ matrix.build }}
-          make
+          emcmake cmake -B build -DCMAKE_BUILD_TYPE=${{ matrix.build }} \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+            "-DCMAKE_C_FLAGS=-ffile-prefix-map=$EMSDK=/emsdk" \
+            "-DCMAKE_CXX_FLAGS=-ffile-prefix-map=$EMSDK=/emsdk"
+          cmake --build build -j $(nproc)