diff --git a/Gemfile.lock b/Gemfile.lock
index 021f772..c6516fd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
       coderay (~> 1.0)
       method_source (~> 0.8)
       slop (~> 3.4)
-    puma (2.7.1)
+    puma (2.8.0)
       rack (>= 1.1, < 2.0)
     rack (1.5.2)
     rack-pjax (0.7.0)