diff --git a/requirements.txt b/requirements.txt
index 8bcd247..8223f62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -88,7 +88,7 @@ pyarrow==0.11.0
 pyasn1==0.4.4
 pycodestyle==2.3.1
 pyflakes==1.6.0
-Pygments==2.2.0
+Pygments==2.7.4
 pylint==2.1.1
 pyparsing==2.2.1
 pytest==3.9.1