diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3b86069..9b24144 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,4 +7,4 @@ requests==2.18.1
 requests-toolbelt==0.8.0
 tqdm==4.14.0
 twine==1.9.1
-urllib3==1.21.1
+urllib3==1.24.2