diff --git a/pip-requirements.txt b/pip-requirements.txt
index 44dcf2e..be52987 100644
--- a/pip-requirements.txt
+++ b/pip-requirements.txt
@@ -48,7 +48,7 @@ prompt-toolkit==1.0.15
 protobuf==3.4.0
 ptyprocess==0.5.2
 pydot==1.0.2
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.2.0
 python-dateutil==2.6.1
 pytz==2017.2