diff --git a/testing-requirements.txt b/testing-requirements.txt
index bdf55a4..319f1ef 100644
--- a/testing-requirements.txt
+++ b/testing-requirements.txt
@@ -50,5 +50,5 @@ simplejson==3.14.0
 six==1.11.0
 tqdm==4.23.3
 twine==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 webencodings==0.5.1