diff --git a/tests/test_server.py b/tests/test_server.py
index 2d09bb2..59a122a 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -26,7 +26,7 @@ from pygls.lsp.types import (
 )
 from pygls.server import LanguageServer
 
-CALL_TIMEOUT = 2
+CALL_TIMEOUT = None
 
 
 def _init(client: LanguageServer, root: Path) -> None: