diff --git a/test_requirements.txt b/test_requirements.txt
index 89492c269..7ea001933 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -22,7 +22,7 @@ xmltodict==0.12.0
 google-compute-engine==2.8.13
 google-cloud-storage==1.38.0
 
-urllib3==1.26.4
+urllib3==1.26.5
 
 # required by collective.checkdocs
 Pygments==2.9.0