diff --git a/examples/langchain-tools-demo/requirements.txt b/examples/langchain-tools-demo/requirements.txt
index b34f04f3..147c5ea2 100644
--- a/examples/langchain-tools-demo/requirements.txt
+++ b/examples/langchain-tools-demo/requirements.txt
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 openllm
 langchain
 google-search-results