diff --git a/requirements-dev.txt b/requirements-dev.txt
index 76aaeefa648f4..ed2f4bd93508f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -41,4 +41,5 @@ xarray
 xlrd
 xlsxwriter
 xlwt
-cpplint
\ No newline at end of file
+cpplint
+mistune>=2.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file