diff --git a/requirements.txt b/requirements.txt
index c6339fd..6db7eee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ pyasn1==0.4.3
 pyasn1-modules==0.2.1
 pycparser==2.18
 PyDispatcher==2.0.5
-Pygments==2.2.0
+Pygments==2.7.4
 PyHamcrest==1.9.0
 pymongo==3.7.2
 PyMySQL==0.8.1