diff --git a/Gemfile.lock b/Gemfile.lock
index 7eb7a27..72f8205 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
       ast (~> 2.2)
     pg (0.18.4)
     powerpack (0.1.1)
-    puma (2.16.0)
+    puma (3.0.2)
     rack (1.6.4)
     rack-pjax (0.8.0)
       nokogiri (~> 1.5)