diff --git a/requirements-dev.txt b/requirements-dev.txt
index 690a3368c7aca..af0d083ff7e7a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -78,4 +78,5 @@ tabulate>=0.8.3
 natsort
 git+https://github.com/pandas-dev/pydata-sphinx-theme.git@master
 git+https://github.com/numpy/numpydoc
-pyflakes>=2.2.0
\ No newline at end of file
+pyflakes>=2.2.0
+pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file