diff --git a/test_requirements.txt b/test_requirements.txt
index 1d177113d..383d948e0 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -2,3 +2,4 @@ mock==1.0.1
 freeze==0.8.0
 sure==1.2.7
 httpretty==0.8.3
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability