diff --git a/Gemfile.lock b/Gemfile.lock
index 1e8faa6..6fd753b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,16 +102,19 @@ GEM
     method_source (1.0.0)
     mimemagic (0.3.5)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.1)
     msgpack (1.3.3)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
+    pg (1.2.3)
     public_suffix (4.0.5)
     puma (4.3.5)
       nio4r (~> 2.0)
+    racc (1.6.0)
     rack (2.2.3)
     rack-proxy (0.6.5)
       rack
@@ -176,7 +179,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.2)
     thor (1.0.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
@@ -217,13 +219,13 @@ DEPENDENCIES
   devise
   jbuilder (~> 2.7)
   listen (~> 3.2)
+  pg (~> 1.2.3)
   puma (~> 4.1)
   rails (~> 6.0.3, >= 6.0.3.2)
   sass-rails (>= 6)
   selenium-webdriver
   spring
   spring-watcher-listen (~> 2.0.0)
-  sqlite3 (~> 1.4)
   turbolinks (~> 5)
   tzinfo-data
   web-console (>= 3.3.0)