diff --git a/api/Gemfile b/api/Gemfile
index bb07558..cd969cb 100644
--- a/api/Gemfile
+++ b/api/Gemfile
@@ -12,7 +12,7 @@ gem 'pg', '>= 0.18', '< 2.0'
 # Use Fast JSON API for serializer
 gem 'fast_jsonapi'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 2.5'
 # Use Redis adapter to run Action Cable in production
diff --git a/api/Gemfile.lock b/api/Gemfile.lock
index 836b270..0804e9a 100644
--- a/api/Gemfile.lock
+++ b/api/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
     nokogiri (1.10.2)
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
-    puma (3.12.1)
+    puma (3.12.2)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -154,7 +154,7 @@ DEPENDENCIES
   fast_jsonapi
   listen (>= 3.0.5, < 3.2)
   pg (>= 0.18, < 2.0)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 5.2.2, >= 5.2.2.1)
   spring
   spring-watcher-listen (~> 2.0.0)