diff --git a/requirements.txt b/requirements.txt
index 6bebed6..c06613d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -136,7 +136,7 @@ pycurl==7.43.0
 pydot==1.2.4
 pydotplus==2.0.2
 pyglet==1.3.0
-Pygments==2.2.0
+Pygments==2.7.4
 pygpu==0.7.5
 PyJWT==1.5.3
 pymavlink==2.2.20