diff --git a/requirements.txt b/requirements.txt
index d8c795f..343a86a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -122,7 +122,7 @@ pyasn1==0.4.5
 pyasn1-modules==0.2.5
 pydot==1.2.4
 pyglet==1.3.2
-Pygments==2.4.0
+Pygments==2.7.4
 pygtrie==2.3
 pyparsing==2.4.0
 pypng==0.0.19