diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 803fad6b..3c06f71f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,8 +32,11 @@ jobs:
         run: go vet ./...
       - name: build
         run: go build ./...
+      # go test already runs packages in parallel. -failfast stops the run at
+      # the first failing test, so a broken commit reports in seconds rather
+      # than after the whole suite.
       - name: test
-        run: go test ./...
+        run: go test -failfast ./...
 
   lint:
     name: lint