diff --git a/Gemfile.lock b/Gemfile.lock
index b4644d6..f275dcb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,10 +88,6 @@ GEM
     database_cleaner (1.8.4)
     debug_inspector (0.0.3)
     diff-lcs (1.3)
-    dotenv (2.7.5)
-    dotenv-rails (2.7.5)
-      dotenv (= 2.7.5)
-      railties (>= 3.2, < 6.1)
     erubi (1.9.0)
     factory_bot (5.1.2)
       activesupport (>= 4.2.0)
@@ -110,7 +106,7 @@ GEM
     jbuilder (2.10.0)
       activesupport (>= 5.0.0)
     json (1.8.6)
-    loofah (2.5.0)
+    loofah (2.19.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -124,15 +120,15 @@ GEM
     midilib (2.0.5)
     mimemagic (0.3.4)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.0)
-    mysql2 (0.5.3)
     net-scp (2.0.0)
       net-ssh (>= 2.6.5, < 6.0.0)
     net-ssh (5.2.0)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pdf-reader (2.4.0)
       Ascii85 (~> 1.0.0)
       afm (~> 0.2.1)
@@ -143,6 +139,7 @@ GEM
     public_suffix (4.0.4)
     puma (4.3.3)
       nio4r (~> 2.0)
+    racc (1.6.1)
     rack (2.2.2)
     rack-proxy (0.6.5)
       rack
@@ -250,14 +247,12 @@ DEPENDENCIES
   capistrano3-puma
   capybara
   database_cleaner
-  dotenv-rails
   factory_bot_rails
   formtastic
   formtastic-bootstrap
   jbuilder
   mail_form
   midilib
-  mysql2
   pdf-reader
   pg
   puma