diff --git a/requirements.txt b/requirements.txt
index fe39183..8d15f17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-langchain-openai
-langgraph
-openai
+langchain-openai>=0.3.0
+langgraph>=0.2.0
+pytest>=8.0.0