diff --git a/Gemfile.lock b/Gemfile.lock
index df2cb30..67d250f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
     psych (5.1.1.1)
       stringio
     public_suffix (5.0.4)
-    puma (5.6.7)
+    puma (5.6.8)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.8)