diff --git a/Gemfile.lock b/Gemfile.lock
index 89b4a9a..677f265 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -56,7 +56,6 @@ GEM
     chartkick (3.2.1)
     childprocess (1.0.1)
       rake (< 13.0)
-    choice (0.2.0)
     coderay (1.1.2)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
@@ -66,7 +65,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.5)
     devise (4.6.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -105,7 +104,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.3)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
@@ -122,7 +121,7 @@ GEM
       ruby-progressbar
     nenv (0.3.0)
     nio4r (2.4.0)
-    nokogiri (1.10.4)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.3)
       nenv (~> 0.1)
@@ -158,11 +157,6 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-erd (1.6.0)
-      activerecord (>= 4.2)
-      activesupport (>= 4.2)
-      choice (~> 0.2.0)
-      ruby-graphviz (~> 1.2)
     rails-html-sanitizer (1.2.0)
       loofah (~> 2.2, >= 2.2.2)
     railties (5.1.7)
@@ -179,7 +173,6 @@ GEM
     responders (2.4.1)
       actionpack (>= 4.2.0, < 6.0)
       railties (>= 4.2.0, < 6.0)
-    ruby-graphviz (1.2.4)
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
     rubyzip (1.2.3)
@@ -259,7 +252,6 @@ DEPENDENCIES
   puma (~> 3.7)
   rails (~> 5.1.4)
   rails-controller-testing (= 1.0.2)
-  rails-erd
   redis (~> 3.3)
   sass-rails (~> 5.0)
   selenium-webdriver