diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 1a2ee496b..ce8a7da7e 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -20,4 +20,4 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: bench
-          args: --bench=server
+          args: --bench=server -- --sample-size=15