diff --git a/requirements.txt b/requirements.txt
index d61f477..57c3c29 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ sphinx
 sphinx[transifex]
 sphinx-intl
 sphinx-rtd-theme==3.1.0
-Pygments>=2.0.1
+Pygments>=2.21.0