diff --git a/agentic-teaching-assistant-demo/requirements.txt b/agentic-teaching-assistant-demo/requirements.txt
index 8e78999..196d26b 100644
--- a/agentic-teaching-assistant-demo/requirements.txt
+++ b/agentic-teaching-assistant-demo/requirements.txt
@@ -27,7 +27,7 @@ yt-dlp
 youtube-search-python==1.6.6  # Pin to 1.6.6 - newer versions have 'proxies' arg bug
 
 # LangChain ecosystem
-langchain-core==0.3.63
+langchain-core==1.3.3
 langchain==0.3.25
 langchain-openai==0.3.16
 langchain-nvidia-ai-endpoints==0.3.9