diff --git a/requirements.txt b/requirements.txt
index 46f4b04..5d6316f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ protobuf==3.7.0
 ptyprocess==0.6.0
 pygame==1.9.4
 pyglet==1.3.2
-Pygments==2.3.1
+Pygments==2.7.4
 pyparsing==2.3.1
 python-dateutil==2.8.0
 PyWavelets==1.0.2