diff --git a/requirements.txt b/requirements.txt
index 618f763..5aff4b1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ pexpect==4.3.1
 pickleshare==0.7.4
 prompt-toolkit==1.0.15
 ptyprocess==0.5.2
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.2.0
 pysptools==0.14.2
 python-dateutil==2.6.1