diff --git a/microservices/ace_agent/samples/ddg_langchain_bot/plugins/requirements_dev.txt b/microservices/ace_agent/samples/ddg_langchain_bot/plugins/requirements_dev.txt
index 7176854..1ee6d9c 100644
--- a/microservices/ace_agent/samples/ddg_langchain_bot/plugins/requirements_dev.txt
+++ b/microservices/ace_agent/samples/ddg_langchain_bot/plugins/requirements_dev.txt
@@ -1,4 +1,4 @@
 langchain==0.1.1
 langchain-community==0.0.13
-langchain-core==0.1.12
+langchain-core==0.1.35
 duckduckgo-search==5.2.2
\ No newline at end of file