diff --git a/intro-cmx/cmx-03-notifications-python/requirements.txt b/intro-cmx/cmx-03-notifications-python/requirements.txt
index 6227a710d..31f0531fb 100644
--- a/intro-cmx/cmx-03-notifications-python/requirements.txt
+++ b/intro-cmx/cmx-03-notifications-python/requirements.txt
@@ -1,2 +1,2 @@
 Flask==0.12.2
-requests==2.18.4
+requests==2.20.0