diff --git a/requirements/dev.txt b/requirements/dev.txt
index a4699ba..e0e04fe 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -4,3 +4,4 @@ pre-commit
 setuptools
 twine
 wheel
+pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability