diff --git a/Gemfile.lock b/Gemfile.lock
index 89f059a..0e3f6be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -234,7 +234,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.6)
-    puma (4.3.11)
+    puma (4.3.12)
       nio4r (~> 2.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)