diff --git a/requirements.txt b/requirements.txt
index ccd0038..f4687a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ pickleshare==0.7.4
 prompt-toolkit==1.0.15
 ptyprocess==0.5.2
 py==1.4.34
-Pygments==2.2.0
+Pygments==2.7.4
 pytest==3.2.3
 scandir==1.5
 simplegeneric==0.8.1