diff --git a/requirement.txt b/requirement.txt
index ad8993f..aa7cf33 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -20,7 +20,7 @@ pexpect==4.6.0
 pickleshare==0.7.5
 prompt-toolkit==1.0.15
 ptyprocess==0.6.0
-Pygments==2.2.0
+Pygments==2.7.4
 PyJWT==1.6.4
 python-openid==2.2.5
 pytz==2018.5