diff --git a/packages/google-cloud-spanner/samples/samples/requirements-test.txt b/packages/google-cloud-spanner/samples/samples/requirements-test.txt
index e4aef72538f9..11f329d20f6d 100644
--- a/packages/google-cloud-spanner/samples/samples/requirements-test.txt
+++ b/packages/google-cloud-spanner/samples/samples/requirements-test.txt
@@ -2,3 +2,4 @@ pytest==9.0.3
 pytest-dependency==0.6.1
 mock==5.2.0
 google-cloud-testutils==1.8.0
+pytest-asyncio==0.25.1