diff --git a/pip_requirements.txt b/pip_requirements.txt
index f0334da..fa26c27 100644
--- a/pip_requirements.txt
+++ b/pip_requirements.txt
@@ -23,6 +23,6 @@ pywin32==306
 pyzmq==26.0.3
 six==1.16.0
 stack-data==0.6.3
-tornado==6.4
+tornado==6.4.1
 traitlets==5.14.3
 wcwidth==0.2.13