diff --git a/requirements.txt b/requirements.txt
index d92bfe4..b0f4803 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ numpy>=1.11.2
 numpydoc==0.6.0
 pdfrw==0.3
 Pillow==3.4.2
-Pygments==2.1.3
+Pygments==2.7.4
 pyparsing==2.1.10
 python-dateutil==2.6.0
 pytz==2016.10