diff --git a/pyproject.toml b/pyproject.toml
index c2a691a..563bbac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ dev = [
     "ruff~=0.9",
     "pytest~=8.3",
     "pytest-cov~=6.1",
-    "pytest-asyncio~=0.24",
+    "pytest-asyncio>=0.24,<2.0",
     "mypy~=1.11",
 ]
 docs = [