diff --git a/intro-nfvis/requirements.txt b/intro-nfvis/requirements.txt
index 6718a3ec4..9bfee9e73 100644
--- a/intro-nfvis/requirements.txt
+++ b/intro-nfvis/requirements.txt
@@ -1,3 +1,3 @@
 ciscosparkapi==0.9.2
 requests==2.18.4
-urllib3==1.22
+urllib3==1.26.5