diff --git a/devel-requirements.txt b/devel-requirements.txt
index a783788..74fa8a6 100644
--- a/devel-requirements.txt
+++ b/devel-requirements.txt
@@ -13,7 +13,7 @@ Jinja2==2.10
 MarkupSafe==1.0
 numpy==1.13.3
 pkg-resources==0.0.0
-Pygments==2.2.0
+Pygments==2.7.4
 pytz==2017.3
 requests==2.18.4
 RPi.GPIO==0.6.3