diff --git a/requirements_testing.txt b/requirements_testing.txt
index 23b308d..e0f6828 100644
--- a/requirements_testing.txt
+++ b/requirements_testing.txt
@@ -6,3 +6,4 @@ torch
 skorch
 selenium
 pytest-console-scripts
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability