diff --git a/examples/040-langchain-stt-tool-python/requirements.txt b/examples/040-langchain-stt-tool-python/requirements.txt
index 617c12d..133fa11 100644
--- a/examples/040-langchain-stt-tool-python/requirements.txt
+++ b/examples/040-langchain-stt-tool-python/requirements.txt
@@ -1,5 +1,5 @@
 deepgram-sdk==6.1.1
-langchain-core==1.2.26
+langchain-core==1.2.28
 langchain-openai==1.1.12
 langchain==1.2.15
 python-dotenv==1.2.2