diff --git a/requirements.txt b/requirements.txt
index 1479330..62f5df3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,9 @@
-# Project dependencies
-langchain==0.2.0
-langchain-chroma==0.1.0
-langchain-ollama==0.1.0
-langchain-tavily==0.1.0
-tavily-python==0.1.0
-chromadb==0.4.22
-python-dotenv==1.0.1
\ No newline at end of file
+langchain>=1.0.0
+langgraph>=1.0.0
+langchain-chroma>=0.1.0
+langchain-ollama>=0.1.0
+langchain-tavily>=0.1.0
+langchain-text-splitters>=0.1.0
+tavily-python>=0.1.0
+chromadb>=0.4.0
+python-dotenv>=1.0.0