diff --git a/{{ cookiecutter.project_slug }}/requirements/dev.txt b/{{ cookiecutter.project_slug }}/requirements/dev.txt
index 16bc71f..9fb8523 100644
--- a/{{ cookiecutter.project_slug }}/requirements/dev.txt	
+++ b/{{ cookiecutter.project_slug }}/requirements/dev.txt	
@@ -214,7 +214,7 @@ typing-extensions==3.7.4.3
     #   -r ci.txt
     #   black
     #   mypy
-urllib3==1.26.2
+urllib3==1.26.4
     # via requests
 webencodings==0.5.1
     # via bleach