diff --git a/Gemfile.lock b/Gemfile.lock
index cabff89..fe59268 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       slop (~> 3.4)
     pry-padrino (0.1.2)
       pry (>= 0.8)
-    puma (2.15.3)
+    puma (3.12.3)
     rack (1.6.4)
     rack-protection (1.5.3)
       rack