diff --git a/requirements-dev.txt b/requirements-dev.txt
index 007a419..bfe7afd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,5 +5,5 @@ idna==2.7
 mock==4.0.3
 requests==2.20.1
 toml==0.10.2
-urllib3==1.24.3
+urllib3==1.26.5
 -e .[test]