diff --git a/requirements.txt b/requirements.txt
index d58b648..0ecf241 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ recommonmark==0.4.0
 sphinx-markdown-tables==0.0.9
 sphinx-rtd-theme==0.4.3
 
-Pygments==2.3.1
+Pygments==2.15.0
 sphinx==1.8.6
 Jinja2==2.11.3
 readthedocs-sphinx-ext==1.0.4