diff --git a/requirements.txt b/requirements.txt
index 53dabf8..bc15493 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ simplegeneric==0.8.1
 sip==4.19.3
 six==1.10.0
 traitlets==4.3.2
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 xlrd==1.1.0
 xlwt==1.3.0