diff --git a/.codeclimate.yml b/.codeclimate.yml
index 9df308022..be8f1df7a 100644
--- a/.codeclimate.yml
+++ b/.codeclimate.yml
@@ -23,6 +23,7 @@ exclude_patterns:
   - "bin/"
   - "config/"
   - "db/"
+  - "lib/"
   - "vendor/"
   - "test/"
   - "spec/"
diff --git a/Gemfile b/Gemfile
index 81bdaabe9..7682cdc4e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -117,10 +117,6 @@ group :development, :test do
   gem 'pry', '0.10.1'
 
   gem 'bullet',        '4.14.7' # for finding database optimizations
-  gem 'bundler-audit'
-  gem 'brakeman',      '3.6.1', require: false # for security audit'
-  # tmp, otherwise conflics with breakman
-  # gem 'html2haml', github: 'haml/html2haml', ref: '6984f50bdbbd6291535027726a5697f28778ee8d'
   gem 'html2haml',     '2.1.0'
   gem 'sdoc',          '0.4.1'  # bundle exec rake doc:rails generates the API under doc/api.
   gem 'railroady',     '1.3.0'  # to generate database diagrams
diff --git a/Gemfile.lock b/Gemfile.lock
index 6e6d8baac..e108bde8f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -122,14 +122,10 @@ GEM
     bootstrap-sass (3.3.5.1)
       autoprefixer-rails (>= 5.0.0.1)
       sass (>= 3.3.0)
-    brakeman (3.6.1)
     builder (3.2.3)
     bullet (4.14.7)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.9.0)
-    bundler-audit (0.5.0)
-      bundler (~> 1.2)
-      thor (~> 0.18)
     cancancan (1.11.0)
     capybara (2.14.0)
       addressable
@@ -462,9 +458,7 @@ DEPENDENCIES
   airbrake
   autodoc
   bootstrap-sass (= 3.3.5.1)
-  brakeman (= 3.6.1)
   bullet (= 4.14.7)
-  bundler-audit
   cancancan (= 1.11.0)
   capybara
   coderay (= 1.1.0)