diff --git a/.github/workflows/async-stripe.yml b/.github/workflows/async-stripe.yml
index d520790df..25538d8d0 100644
--- a/.github/workflows/async-stripe.yml
+++ b/.github/workflows/async-stripe.yml
@@ -52,6 +52,8 @@ jobs:
 
   clippy:
     runs-on: ubuntu-20.04
+    env:
+      RUSTFLAGS: -D warnings
     strategy:
       matrix:
         runtime: