diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 0a2835f728..4eca6562f9 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -50,3 +50,4 @@ jobs:
               a = bytearray(size)
               time.sleep(5)
               a
+              a = None