diff --git a/ai/generative-ai-service/document-processing-with-genai/doc-understanding-and-genAI/files/requirements.txt b/ai/generative-ai-service/document-processing-with-genai/doc-understanding-and-genAI/files/requirements.txt
index e0f79507a..071fb90d6 100644
--- a/ai/generative-ai-service/document-processing-with-genai/doc-understanding-and-genAI/files/requirements.txt
+++ b/ai/generative-ai-service/document-processing-with-genai/doc-understanding-and-genAI/files/requirements.txt
@@ -9,7 +9,7 @@ oci==2.155.2
 oci-cli==3.62.2                  
 
 langchain==0.3.26                
-langchain-core==0.3.80           
+langchain-core==1.2.28           
 langchain-community==0.2.19      
 
 # Additional dependencies