diff --git a/requirements.txt b/requirements.txt
index 778664a..21f0249 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Pygments==2.4.2
+Pygments==2.7.4
 sphinx==2.1.2
 sphinx-rtd-theme==0.4.3
 sphinx-autodoc-typehints==1.7.0