diff --git a/Gemfile b/Gemfile
index 6a09613e..9f6d68e1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -54,7 +54,7 @@ gem 'letter_opener', '~> 1.8', '>= 1.8.1', group: :development
 gem 'parallel', '~> 1.23'
 
 # For debugging.
-gem 'web-console', '~> 3.7', group: :development
+gem 'web-console', '~> 4.2', group: :development
 
 # TODO: Review our use of content_tag_for etc and uninstall this!
 gem 'record_tag_helper', '~> 1.0', '>= 1.0.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 01dc16ef..ed7615b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -293,11 +293,11 @@ GEM
     unf_ext (0.0.8.2)
     warden (1.2.7)
       rack (>= 1.0)
-    web-console (3.7.0)
-      actionview (>= 5.0)
-      activemodel (>= 5.0)
+    web-console (4.2.0)
+      actionview (>= 6.0.0)
+      activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
-      railties (>= 5.0)
+      railties (>= 6.0.0)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -337,7 +337,7 @@ DEPENDENCIES
   sanitize (~> 6.0, >= 6.0.2)
   sass-rails (~> 5.0, >= 5.0.7)
   uglifier (~> 4.2)
-  web-console (~> 3.7)
+  web-console (~> 4.2)
   will_paginate (~> 4.0)
 
 RUBY VERSION
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 629c9652..d8c9e9b1 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -66,6 +66,9 @@ Rails.application.configure do
   # NOTE: But I also see that this might be the default anyway in current
   # Rails? idk when that changed... so maybe just delete this later?
   config.file_watcher = ActiveSupport::FileUpdateChecker
+
+  # Allow connections on Vagrant's private network.
+  config.web_console.permissions = '10.0.2.2'
 end
 
 LocalImpressHost = 'betanewimpress.openneo.net'
diff --git a/vendor/cache/web-console-3.7.0.gem b/vendor/cache/web-console-3.7.0.gem
deleted file mode 100644
index 82e5bde3..00000000
Binary files a/vendor/cache/web-console-3.7.0.gem and /dev/null differ
diff --git a/vendor/cache/web-console-4.2.0.gem b/vendor/cache/web-console-4.2.0.gem
new file mode 100644
index 00000000..f147b5d6
Binary files /dev/null and b/vendor/cache/web-console-4.2.0.gem differ