diff --git a/Gemfile b/Gemfile
index a1d58129..42dbca98 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gem 'sequel'
 gem 'bcrypt'
 gem 'sinatra-flash',      require: 'sinatra/flash'
 gem 'sinatra-xsendfile',  require: 'sinatra/xsendfile'
-gem 'puma', '3.12.1',     require: nil
+gem 'puma', '3.12.2',     require: nil
 gem 'rmagick',            require: nil
 gem 'sidekiq', '~> 4.2.10'
 gem 'mail'
diff --git a/Gemfile.lock b/Gemfile.lock
index 517a068c..8efea6e8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
       byebug (~> 11.0)
       pry (~> 0.10)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.2)
     rack (2.0.7)
     rack-cache (1.9.0)
       rack (>= 0.4)
@@ -328,7 +328,7 @@ DEPENDENCIES
   pg
   pry
   pry-byebug
-  puma (= 3.12.1)
+  puma (= 3.12.2)
   rack-cache
   rack-test
   rack_session_access