diff --git a/Gemfile.lock b/Gemfile.lock
index 0f98b6b7..1de09e73 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -307,7 +307,7 @@ GEM
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (4.0.6)
-    puma (4.3.9)
+    puma (4.3.12)
       nio4r (~> 2.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)