diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 9d5781e5..ceebae62 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -13,6 +13,8 @@ on:
 
 jobs:
   build-matrix:
+    env:
+      RQ_VERSION: v0.0.9
     name: Matrix
     strategy:
       matrix:
@@ -37,7 +39,20 @@ jobs:
           version: edge
           static: ${{ matrix.os.static }}
       - run: npm install -g markdownlint-cli
-      - run: go install git.sr.ht/~charles/rq/cmd/rq@latest
+      - name: Restore rq cache
+        id: cache-rq
+        uses: actions/cache@v4
+        with:
+          path: ~/go/bin/rq
+          key: ${{ runner.os }}-${{ runner.arch }}-go-rq-${{ env.RQ_VERSION }}
+      - run: go install git.sr.ht/~charles/rq/cmd/rq@${{ env.RQ_VERSION }}
+        if: steps.cache-rq.outputs.cache-hit != 'true'
+      - name: Cache rq binary
+        if: steps.cache-rq.outputs.cache-hit != 'true'
+        uses: actions/cache@v4
+        with:
+          path: ~/go/bin/rq
+          key: ${{ runner.os }}-${{ runner.arch }}-go-rq-${{ env.RQ_VERSION }}
       - run: build/do.rq pull_request
       - uses: golangci/golangci-lint-action@v6.0.1
         if: matrix.os.name == 'linux'