diff --git a/requirements-dev.txt b/requirements-dev.txt
index 865d31c1..0a3f4c21 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -21,5 +21,5 @@ requests-oauthlib==0.8.0
 rjsmin==1.0.12
 six==1.11.0
 static3==0.7.0
-urllib3==1.22
+urllib3==1.26.5
 whitenoise==3.3.0