diff --git a/requirements.txt b/requirements.txt
index aef65f4..8fe1368 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ parso==0.3.1
 patsy==0.5.1
 pickleshare==0.7.5
 prompt-toolkit==2.0.7
-Pygments==2.3.1
+Pygments==2.7.4
 pyparsing==2.3.0
 python-dateutil==2.7.5
 pytz==2018.7