diff --git a/pyproject.toml b/pyproject.toml
index 0eb096a..86137b4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ dev = [
     "black>=24.4",
     "mypy>=1.10",
     "pre-commit>=3.7",
-    "greenlet>=3.0",
+    "greenlet>=3.5.3",
 ]
 
 [tool.hatch.build.targets.wheel]