diff --git a/claude-agent-sdk/pyproject.toml b/claude-agent-sdk/pyproject.toml
index c1c8ba8..16039ce 100644
--- a/claude-agent-sdk/pyproject.toml
+++ b/claude-agent-sdk/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
 [project.optional-dependencies]
 test = [
     "pytest==9.2.0",
-    "pytest-asyncio==1.4.1",
+    "pytest-asyncio==1.4.1.post1",
 ]
 dev = [
     "bolt-python-coding-agent-claude[test]",