diff --git a/libs/langgraph/pyproject.toml b/libs/langgraph/pyproject.toml
index 6afad9fc1..b7d4b6f7c 100644
--- a/libs/langgraph/pyproject.toml
+++ b/libs/langgraph/pyproject.toml
@@ -40,6 +40,7 @@ dev = [
     "langgraph-checkpoint-sqlite",
     "langgraph-checkpoint-postgres",
     'psycopg[binary]>=3.0.0; python_version >= "3.10"',
+    "uvloop==0.21.0beta1",
     "pyperf>=2.7.0",
     "py-spy>=0.3.14",
     "types-requests>=2.32.0.20240914",