diff --git a/requirements.txt b/requirements.txt
index ae2333a1..cdd13a9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@
 oslo.log>=3.36.0 # Apache-2.0
 python-monascaclient>=1.7.0 # Apache-2.0
 Django<2.0,>=1.8 # BSD
-horizon>=13.0.0  # Apache-2.0
+horizon>=13.0.0 # Apache-2.0