diff --git a/dev_requirements.txt b/dev_requirements.txt
index 9ccadbf..c4cf437 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -2,4 +2,5 @@ termcolor
 pytest
 pytest-asyncio
 sphinx
-sphinxcontrib-apidoc
\ No newline at end of file
+sphinxcontrib-apidoc
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file