diff --git a/metadata-api/requirements.txt b/metadata-api/requirements.txt
index f2b060d..34b7bcf 100644
--- a/metadata-api/requirements.txt
+++ b/metadata-api/requirements.txt
@@ -44,7 +44,7 @@ pyasn1-modules==0.2.1
 pycparser==2.18
 pycryptodome==3.4.7
 pyethash==0.1.27
-Pygments==2.2.0
+Pygments==2.7.4
 pylru==1.0.9
 pysha3==1.0.2
 pytz==2017.2