diff --git a/Lesson-4/activity_9/requirements.txt b/Lesson-4/activity_9/requirements.txt
index df528f0..e445aab 100644
--- a/Lesson-4/activity_9/requirements.txt
+++ b/Lesson-4/activity_9/requirements.txt
@@ -35,5 +35,5 @@ six==1.11.0
 tensorflow==1.4.1
 tensorflow-tensorboard==0.4.0rc3
 termstyle==0.1.11
-urllib3==1.22
+urllib3==1.26.5
 Werkzeug==0.13