diff --git a/dev.requirements.txt b/dev.requirements.txt
index 2abe529..218de12 100644
--- a/dev.requirements.txt
+++ b/dev.requirements.txt
@@ -41,6 +41,6 @@ toml==0.10.0
 tox==3.14.5
 tqdm==4.43.0
 twine==1.15.0
-urllib3==1.25.8
+urllib3==1.26.5
 virtualenv==20.0.7
 webencodings==0.5.1