diff --git a/requirements.txt b/requirements.txt
index 8c9e7fd..8d4d6fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,6 @@ simplegeneric==0.8.1
 sip==4.19
 six==1.10.0
 traitlets==4.3.1
-urllib3==1.19.1
+urllib3==1.26.5
 wcwidth==0.1.7
 win-unicode-console==0.5
\ No newline at end of file