diff --git a/py3_test_requirements.txt b/py3_test_requirements.txt
index 80c7b64..785bb2e 100644
--- a/py3_test_requirements.txt
+++ b/py3_test_requirements.txt
@@ -9,3 +9,4 @@ mock==1.0.1
 # git+https://github.com/spulec/moto.git@0.4.23#egg=moto
 moto==3.1.19
 -e .
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability