diff --git a/requirements_dev.txt b/requirements_dev.txt
index 11fcfac..44c9513 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -62,7 +62,7 @@ toml==0.10.0
 tox==3.5.2
 tqdm==4.31.1
 twine==1.12.1
-urllib3==1.24.1
+urllib3==1.24.2
 virtualenv==16.4.3
 wadllib==1.3.3
 watchdog==0.9.0