diff --git a/Gemfile b/Gemfile
index 66eaa70a..bf7653b8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -31,4 +31,5 @@ end
 group :development do
   gem 'foreman'
   gem 'rerun'
+  gem 'rb-fsevent', '~> 0.9.1'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 0c0a188e..0ce882d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -213,6 +213,7 @@ GEM
       thor (>= 0.14.6, < 2.0)
     raindrops (0.10.0)
     rake (0.9.2.2)
+    rb-fsevent (0.9.1)
     rdoc (3.12)
       json (~> 1.4)
     redcarpet (2.1.1)
@@ -273,6 +274,7 @@ DEPENDENCIES
   rack-contrib!
   rake-pipeline!
   rake-pipeline-web-filters!
+  rb-fsevent (~> 0.9.1)
   rerun
   sinatra
   sinatra-contrib