diff --git a/Gemfile b/Gemfile
index 470ffa08..0fb8001e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -106,4 +106,5 @@ group :development, :test do
   gem 'guard-brakeman'
   gem 'timecop'
   gem 'rails-controller-testing'
+  gem 'haml_lint', require: false
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index fb1728a5..2f64072f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,6 +68,7 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (9.0.0)
+    ast (2.4.0)
     autoprefixer-rails (9.7.6)
       execjs
     bcrypt (3.1.13)
@@ -197,6 +198,11 @@ GEM
     haml (5.1.2)
       temple (>= 0.8.0)
       tilt
+    haml_lint (0.35.0)
+      haml (>= 4.0, < 5.2)
+      rainbow
+      rubocop (>= 0.50.0)
+      sysexits (~> 1.1)
     hashie (4.1.0)
     http (4.4.1)
       addressable (~> 2.3)
@@ -217,6 +223,7 @@ GEM
     i18n-js (3.0.0.rc10)
       i18n (~> 0.6)
     ipaddress (0.8.3)
+    jaro_winkler (1.5.4)
     jbuilder (2.10.0)
       activesupport (>= 5.0.0)
     jquery-minicolors-rails (2.2.6.2)
@@ -310,6 +317,9 @@ GEM
       mime-types
       mimemagic (~> 0.3.0)
       terrapin (~> 0.6.0)
+    parallel (1.19.1)
+    parser (2.7.1.2)
+      ast (~> 2.4.0)
     pg (1.2.3)
     pghero (2.4.2)
       activerecord (>= 5)
@@ -378,6 +388,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
+    rainbow (3.0.0)
     raindrops (0.19.1)
     rake (13.0.1)
     rb-fsevent (0.10.3)
@@ -390,6 +401,7 @@ GEM
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)
+    rexml (3.2.4)
     rolify (5.2.0)
     rspec-core (3.9.1)
       rspec-support (~> 3.9.1)
@@ -414,6 +426,14 @@ GEM
       rspec-core (~> 3.0, >= 3.0.0)
       sidekiq (>= 2.4.0)
     rspec-support (3.9.2)
+    rubocop (0.82.0)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.7.0.1)
+      rainbow (>= 2.2.2, < 4.0)
+      rexml
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 1.4.0, < 2.0)
     ruby-progressbar (1.10.1)
     sanitize (5.1.0)
       crass (~> 1.0.2)
@@ -464,6 +484,7 @@ GEM
       sprockets (>= 3.0.0)
     sweetalert-rails (1.1.3)
       railties (>= 3.1.0)
+    sysexits (1.2.0)
     temple (0.8.2)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
@@ -493,6 +514,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.7)
+    unicode-display_width (1.7.0)
     unicorn (5.5.4)
       kgio (~> 2.6)
       raindrops (~> 0.7)
@@ -539,6 +561,7 @@ DEPENDENCIES
   foreman
   guard-brakeman
   haml (~> 5.0)
+  haml_lint
   httparty
   i18n-js (= 3.0.0.rc10)
   jbuilder (~> 2.10)