diff --git a/requirements.txt b/requirements.txt
index 3fc4f8b..e6735ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
-langgraph==0.3.0
-langchain==1.2.10
-langchain-openai==1.1.9
-questionary==1.10.0
\ No newline at end of file
+langgraph>=0.2.0
+langchain>=1.2.10
+langchain-openai>=0.3.0
+questionary>=1.10.0
+python-dotenv>=1.0.0