diff --git a/requirements.txt b/requirements.txt
index 50afa56..bbf8954 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ pickleshare==0.7.4
 prompt-toolkit==1.0.13
 py==1.4.32
 pygame==1.9.3
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.1.4
 pytest==3.0.7
 python-dateutil==2.6.0