diff --git a/devel-requirements.txt b/devel-requirements.txt
index a783788..c1c71f7 100644
--- a/devel-requirements.txt
+++ b/devel-requirements.txt
@@ -23,4 +23,4 @@ Sphinx==1.6.5
 sphinx-rtd-theme==0.2.4
 sphinxcontrib-websupport==1.0.1
 typing==3.6.2
-urllib3==1.22
+urllib3==1.26.5