diff --git a/requirements.txt b/requirements.txt
index c27c0d2..31d5be5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ pydocstyle==3.0.0
 pydot==1.4.1
 pydotplus==2.0.2
 pyflakes==2.1.1
-Pygments==2.4.0
+Pygments==2.7.4
 pylint==2.3.1
 pyOpenSSL==19.0.0
 pyparsing==2.4.0