diff --git a/requirements.txt b/requirements.txt
index b290b554c..18c2ab19a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ langchain
 chromadb # Vector storage
 pytest
 boto3
+starlette>=0.40.0 # not directly required, pinned by Snyk to avoid a vulnerability