diff --git a/app/models/concerns/has_compats.rb b/app/models/concerns/has_compats.rb
deleted file mode 100644
index b222cb8..0000000
--- a/app/models/concerns/has_compats.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-module HasCompats
-  # def compats
-  #   gemmies = is_a?(Gemmy) ? self.class.where(id: self) : self.gemmies
-  #   Compat.where(id: gemmies.from("#{Gemmy.table_name}, json_each(#{Gemmy.table_name}.compat_ids)").select("json_each.value"))
-  # end
-  def compats
-    Compat.where("id IN (SELECT value::bigint FROM json_array_elements_text(?))", compat_ids.to_json)
-  end
-end
diff --git a/app/models/gemmy.rb b/app/models/gemmy.rb
index 2fa2f32..febec20 100644
--- a/app/models/gemmy.rb
+++ b/app/models/gemmy.rb
@@ -1,6 +1,4 @@
 class Gemmy < ApplicationRecord
-  include HasCompats
-
   FORBIDDEN_NAMES = %w(
     new
     edit
@@ -11,6 +9,10 @@ class Gemmy < ApplicationRecord
 
   delegate :to_param, :to_s, to: :name
 
+  def compats
+    Compat.where(id: compat_ids)
+  end
+
   def dependencies
     dependencies_and_versions
       .keys
diff --git a/app/models/lockfile.rb b/app/models/lockfile.rb
index b7ffa58..6683456 100644
--- a/app/models/lockfile.rb
+++ b/app/models/lockfile.rb
@@ -1,6 +1,4 @@
 class Lockfile < ApplicationRecord
-  include HasCompats
-
   has_many :dependencies, class_name: "LockfileDependency", dependent: :destroy
   has_many :gemmies, through: :dependencies
 
@@ -11,6 +9,10 @@ class Lockfile < ApplicationRecord
   delegate :to_param, to: :slug
 
   scope :with_gemmies, ->(gemmies) { joins(:gemmies).where(gemmies: { id: gemmies }).distinct }
+
+  def compats
+    Compat.where(id: gemmies.flat_map(&:compat_ids))
+  end
 end
 
 # == Schema Information