diff --git a/Gemfile b/Gemfile
index 9174516..57cc550 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'rails', '~> 6.0.0'
 # gem 'sqlite3', '~> 1.4'
 gem 'pg'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index 1c5ad70..37438a8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,8 +102,9 @@ GEM
     nio4r (2.5.2)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
+    pg (1.2.2)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.3)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -170,7 +171,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.1)
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.10)
@@ -205,14 +205,14 @@ DEPENDENCIES
   capybara (>= 2.15)
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
-  puma (~> 3.11)
+  pg
+  puma (~> 3.12)
   rails (~> 6.0.0)
   responders
   sass-rails (~> 5)
   selenium-webdriver
   spring
   spring-watcher-listen (~> 2.0.0)
-  sqlite3 (~> 1.4)
   tzinfo-data
   web-console (>= 3.3.0)
   webdrivers