diff --git a/requirements.txt b/requirements.txt
index 379048e..dcbc000 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ MarkupSafe==1.0
 packaging==17.1
 pbr==4.0.3
 peewee==3.4.0
-Pygments==2.2.0
+Pygments==2.7.4
 pygments-lexer-solidity==0.2.0
 pyparsing==2.2.0
 pytz==2018.4