diff --git a/md5_light/requirements.txt b/md5_light/requirements.txt
index 47a5583..ab02435 100644
--- a/md5_light/requirements.txt
+++ b/md5_light/requirements.txt
@@ -37,7 +37,7 @@ ptyprocess==0.6.0
 py==1.5.4
 pycodestyle==2.3.1
 pyflakes==1.6.0
-Pygments==2.2.0
+Pygments==2.7.4
 pytest==3.7.1
 pytest-cov==2.8.1
 pytest-flask==0.10.0