diff --git a/requirements.txt b/requirements.txt
index c7af86a..957fc74 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -153,7 +153,7 @@ pycparser==2.18
 pycrypto==2.6.1
 pycurl==7.43.0.1
 pyflakes==1.6.0
-Pygments==2.4.0
+Pygments==2.7.4
 pyhanlp==0.1.45
 pylint==1.8.2
 pyodbc==4.0.22