diff --git a/requirements-to-freeze.txt b/requirements-to-freeze.txt
index 12983cc..24d0332 100644
--- a/requirements-to-freeze.txt
+++ b/requirements-to-freeze.txt
@@ -18,3 +18,5 @@ gunicorn
 # Testing && development
 flake8
 black
+certifi>=2022.12.7 # not directly required, pinned by Snyk to avoid a vulnerability
+mako>=1.2.2 # not directly required, pinned by Snyk to avoid a vulnerability