diff --git a/apps/embeddings-playground/requirements.txt b/apps/embeddings-playground/requirements.txt
index c23262245a..0ce21b9db2 100644
--- a/apps/embeddings-playground/requirements.txt
+++ b/apps/embeddings-playground/requirements.txt
@@ -3,4 +3,5 @@ openai
 pandas
 scipy
 streamlit
-tenacity
\ No newline at end of file
+tenacity
+tornado>=6.4.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file