diff --git a/generative_ai/understand_docs/requirements.txt b/generative_ai/understand_docs/requirements.txt
index 8c94bb4d15a..f7115077df5 100644
--- a/generative_ai/understand_docs/requirements.txt
+++ b/generative_ai/understand_docs/requirements.txt
@@ -7,7 +7,7 @@ google-cloud-aiplatform[all]==1.69.0
 sentencepiece==0.2.0
 google-auth==2.38.0
 anthropic[vertex]==0.28.0
-langchain-core==0.2.33
+langchain-core==0.2.43
 langchain-google-vertexai==1.0.10
 numpy<2
 openai==1.30.5