diff --git a/requirements.txt b/requirements.txt
index f15a074..ec4901b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pluggy==0.8.0
 prompt-toolkit==2.0.7
 ptyprocess==0.6.0
 py==1.7.0
-Pygments==2.3.0
+Pygments==2.7.4
 pytest==4.0.2
 six==1.11.0
 traitlets==4.3.2