diff --git a/pyproject.toml b/pyproject.toml
index 8da6954f..41dca003 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ dependencies = [
 dev = [
     "typing-inspect",
     "pytest",
-    "pytest-asyncio",
+    "pytest-asyncio != 0.25.1",  # https://github.com/pytest-dev/pytest-asyncio/issues/1039
     "Twine",
     "freezegun",
 ]