diff --git a/requirements_dev.txt b/requirements_dev.txt
index bcd66a7..6445a99 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -25,7 +25,7 @@ requests-toolbelt==0.9.1
 six==1.12.0
 tqdm==4.32.2
 twine==1.13.0
-urllib3==1.25.11
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 zipp==0.5.2