diff --git a/requirements.txt b/requirements.txt
index 7054981..a4be9bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ py==1.4.33
 pycodestyle==2.0.0
 pyflakes==1.2.3
 pyglet==1.2.4
-Pygments==2.2.0
+Pygments==2.7.4
 pylint==1.6.4
 PyOpenGL==3.1.0
 pyparsing==2.2.0