diff --git a/Gemfile.lock b/Gemfile.lock
index 1c5ad70..3a398d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,13 +72,13 @@ GEM
       regexp_parser (~> 1.5)
       xpath (~> 3.2)
     childprocess (3.0.0)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.10)
     crass (1.0.4)
     erubi (1.9.0)
     ffi (1.11.1)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
-    i18n (1.7.0)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
@@ -94,14 +94,17 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.12.2)
+    minitest (5.17.0)
     msgpack (1.3.1)
     nio4r (2.5.2)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
+    pg (1.4.5)
     public_suffix (4.0.1)
     puma (3.12.1)
     rack (2.0.7)
@@ -170,11 +173,10 @@ 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)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.1)
       actionview (>= 6.0.0)
@@ -194,7 +196,7 @@ GEM
     websocket-extensions (0.1.4)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.1.10)
+    zeitwerk (2.6.6)
 
 PLATFORMS
   ruby
@@ -205,6 +207,7 @@ DEPENDENCIES
   capybara (>= 2.15)
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
+  pg
   puma (~> 3.11)
   rails (~> 6.0.0)
   responders
@@ -212,7 +215,6 @@ DEPENDENCIES
   selenium-webdriver
   spring
   spring-watcher-listen (~> 2.0.0)
-  sqlite3 (~> 1.4)
   tzinfo-data
   web-console (>= 3.3.0)
   webdrivers