diff --git a/test_requirements.txt b/test_requirements.txt
index 93baa21..6e56832 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -4,4 +4,5 @@ pytest
 pytest-cov
 pytest-instafail
 pytest-pep8
-pytest-spec
\ No newline at end of file
+pytest-spec
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file