diff --git a/dev_requirements.txt b/dev_requirements.txt
index 89fa564..239b7c6 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,6 +1,6 @@
 PySide6==6.10.0
 langchain_openai==1.0.2
-langchain==1.0.3
+langchain==1.1.2
 ruff
 sphinx
 twine