diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d03b2f..43f7c28 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,3 +43,9 @@ jobs:
 
       - name: zig build test (Release Safe)
         run: zig build test --release=safe
+
+      - name: zig build (Release Fast)
+        run: zig build --release=fast
+
+      - name: zig build test (Release Fast)
+        run: zig build test --release=fast