diff --git a/Gemfile b/Gemfile
index 97300f6..d78df14 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,6 +29,7 @@ gem 'font-awesome-sass'
 gem 'kaminari'
 gem 'mini_racer'
 gem 'pundit'
+gem 'ransack'
 gem 'redcarpet'
 gem 'sprockets'
 gem 'sprockets-rails', require: 'sprockets/railtie'
diff --git a/Gemfile.lock b/Gemfile.lock
index c5d1b0b..c80879c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -197,6 +197,8 @@ GEM
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
+    polyamorous (2.3.2)
+      activerecord (>= 5.2.1)
     popper_js (1.16.0)
     pry (0.13.1)
       coderay (~> 1.1)
@@ -243,6 +245,11 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.20.3, < 2.0)
     rake (13.0.1)
+    ransack (2.3.2)
+      activerecord (>= 5.2.1)
+      activesupport (>= 5.2.1)
+      i18n
+      polyamorous (= 2.3.2)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -362,6 +369,7 @@ DEPENDENCIES
   pundit
   rails (~> 6.0.2)
   rails-controller-testing
+  ransack
   redcarpet
   rspec
   rspec-rails