diff --git a/app/models/megaphone/api.rb b/app/models/megaphone/api.rb
index b694bdb7e..0dafbba3e 100644
--- a/app/models/megaphone/api.rb
+++ b/app/models/megaphone/api.rb
@@ -4,8 +4,8 @@ class Api
 
     DEFAULT_ENDPOINT = "https://cms.megaphone.fm/api"
 
-    PAGINATION_HEADERS = %w(link x-per-page x-page x-total)
-    PAGINATION_LINKS = %w(first last next previous)
+    PAGINATION_HEADERS = %w[link x-per-page x-page x-total]
+    PAGINATION_LINKS = %w[first last next previous]
 
     def initialize(token:, network_id:, endpoint_url: nil)
       @token = token
@@ -13,11 +13,11 @@ def initialize(token:, network_id:, endpoint_url: nil)
       @endpoint_url = endpoint_url
     end
 
-    def get(path, params={}, headers={})
+    def get(path, params = {}, headers = {})
       request = {url: join_url(path), headers: headers, params: params}
       response = get_url(request)
       data = incoming_body_filter(response.body)
-      if data.kind_of?(Array)
+      if data.is_a?(Array)
         pagination = pagination_from_headers(response.env.response_headers)
         {items: data, pagination: pagination, request: request, response: response}
       else
@@ -25,15 +25,15 @@ def get(path, params={}, headers={})
       end
     end
 
-    def post(path, body, headers={})
-      response = connection({url: join_url(path), headers: headers}).post() do |req|
+    def post(path, body, headers = {})
+      response = connection({url: join_url(path), headers: headers}).post do |req|
         req.body = outgoing_body_filter(body)
       end
       incoming_body_filter(response.body)
     end
 
-    def put(path, body, headers={})
-      connection({url: join_url(path), headers: headers}).put() do |req|
+    def put(path, body, headers = {})
+      connection({url: join_url(path), headers: headers}).put do |req|
         req.body = outgoing_body_filter(body)
       end
       incoming_body_filter(response.body)
@@ -47,7 +47,7 @@ def api_base
 
     def pagination_from_headers(headers)
       paging = (headers || {}).slice(*PAGINATION_HEADERS).transform_keys do |h|
-        h.sub(/^x-/, "").gsub(/-/, "_").to_sym
+        h.sub(/^x-/, "").tr("-", "_").to_sym
       end
 
       [:page, :per_page, :total].each do |k|
@@ -63,16 +63,15 @@ def parse_links(link_headers)
       return {} unless link_headers.present?
       collection = LinkHeaderParser.parse(link_headers, base: mp.api.api_base)
       links = collection.group_by_relation_type
-      PAGINATION_LINKS.inject({}) do |map, key|
-        if link = (links[key] || []).first
+      PAGINATION_LINKS.each_with_object({}) do |key, map|
+        if (link = (links[key] || []).first)
           map[key] = link.target_uri
         end
-        map
       end
     end
 
     def get_url(options)
-      response = connection(options).get()
+      connection(options).get
     end
 
     def join_url(*path)
@@ -85,7 +84,7 @@ def incoming_body_filter(str)
     end
 
     def transform_keys(result)
-      if result.kind_of?(Array)
+      if result.is_a?(Array)
         result.map { |r| transform_keys(r) }
       elsif result.respond_to?(:deep_transform_keys)
         result.deep_transform_keys { |key| key.to_s.underscore.to_sym }
diff --git a/app/models/megaphone/podcast.rb b/app/models/megaphone/podcast.rb
index 325f2eed4..be9211f7d 100644
--- a/app/models/megaphone/podcast.rb
+++ b/app/models/megaphone/podcast.rb
@@ -1,33 +1,34 @@
 module Megaphone
   class Podcast
     include ActiveModel::Model
-    attr_accessor :feed, :api
+    attr_accessor :feed
+    attr_writer :api
 
     # Required attributes for a create
     # external_id is not required by megaphone, but we need it to be set!
-    CREATE_REQUIRED = %w(title subtitle summary itunes_categories language external_id)
+    CREATE_REQUIRED = %w[title subtitle summary itunes_categories language external_id]
 
     # Other attributes available on create
-    CREATE_ATTRIBUTES = CREATE_REQUIRED + %w(link copyright author background_image_file_url
+    CREATE_ATTRIBUTES = CREATE_REQUIRED + %w[link copyright author background_image_file_url
       explicit owner_name owner_email slug original_rss_url itunes_identifier podtrac_enabled
-      google_play_identifier episode_limit podcast_type advertising_tags excluded_categories)
+      google_play_identifier episode_limit podcast_type advertising_tags excluded_categories]
 
     # Update also allows the span opt in
-    UPDATE_ATTRIBUTES = CREATE_ATTRIBUTES + %w(span_opt_in)
+    UPDATE_ATTRIBUTES = CREATE_ATTRIBUTES + %w[span_opt_in]
 
     # Deprecated, so we shouldn't rely on these, but they show up as attributes
-    DEPRECATED = %w(category redirect_url itunes_active redirected_at itunes_rating
-      google_podcasts_identifier stitcher_identifier)
+    DEPRECATED = %w[category redirect_url itunes_active redirected_at itunes_rating
+      google_podcasts_identifier stitcher_identifier]
 
     # All other attributes we might expect back from the Megaphone API
     # (some documented, others not so much)
-    OTHER_ATTRIBUTES = %w(id created_at updated_at image_file uid network_id recurring_import
+    OTHER_ATTRIBUTES = %w[id created_at updated_at image_file uid network_id recurring_import
       episodes_count spotify_identifier default_ad_settings iheart_identifier feed_url
-      default_pre_count default_post_count cloned_feed_urls ad_free_feed_urls main_feed ad_free)
+      default_pre_count default_post_count cloned_feed_urls ad_free_feed_urls main_feed ad_free]
 
     ALL_ATTRIBUTES = (UPDATE_ATTRIBUTES + DEPRECATED + OTHER_ATTRIBUTES)
 
-    attr_accessor *ALL_ATTRIBUTES
+    attr_accessor(*ALL_ATTRIBUTES)
 
     validates_presence_of CREATE_REQUIRED
 
@@ -36,7 +37,7 @@ class Podcast
     validates_absence_of :id, on: :create
 
     # initialize from attributes
-    def initialize(attributes={})
+    def initialize(attributes = {})
       super
     end
 
@@ -69,7 +70,7 @@ def self.attributes_from_feed(feed)
         episode_limit: feed.display_episodes_count,
         external_id: podcast.guid,
         podcast_type: podcast.itunes_type,
-        advertising_tags: podcast.categories,
+        advertising_tags: podcast.categories
         # set in augury, can we get it here?
         # excluded_categories: ????? TBD,
       }
@@ -85,7 +86,7 @@ def find_by_guid
       Megaphone::PagedCollection.new(Megaphone::Podcast, result)
     end
 
-    def find_by_megaphone_id(mpid = self.id)
+    def find_by_megaphone_id(mpid = id)
       result = api.get("podcasts/#{mpid}")
       (result[:items] || []).first
     end
diff --git a/config/application.rb b/config/application.rb
index 0dadf0e2a..b70d9a9a1 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -152,8 +152,8 @@ def fmt.call(data)
     config.log_tags = [:request_id]
     config.active_record.schema_format = :ruby
 
-    config.active_record.encryption.primary_key = ENV['ACTIVE_RECORD_ENCRYPTION_PRIMARY_KEY']
-    config.active_record.encryption.deterministic_key = ENV['ACTIVE_RECORD_ENCRYPTION_DETERMINISTIC_KEY']
-    config.active_record.encryption.key_derivation_salt = ENV['ACTIVE_RECORD_ENCRYPTION_KEY_DERIVATION_SALT']
+    config.active_record.encryption.primary_key = ENV["ACTIVE_RECORD_ENCRYPTION_PRIMARY_KEY"]
+    config.active_record.encryption.deterministic_key = ENV["ACTIVE_RECORD_ENCRYPTION_DETERMINISTIC_KEY"]
+    config.active_record.encryption.key_derivation_salt = ENV["ACTIVE_RECORD_ENCRYPTION_KEY_DERIVATION_SALT"]
   end
 end
diff --git a/test/models/megaphone/api_test.rb b/test/models/megaphone/api_test.rb
index fef6095c9..e2ec20643 100644
--- a/test/models/megaphone/api_test.rb
+++ b/test/models/megaphone/api_test.rb
@@ -2,7 +2,6 @@
 require "securerandom"
 
 describe Megaphone::Api do
-
   let(:token) { SecureRandom.uuid }
   let(:network_id) { "this-is-a-network-id" }
   let(:api) { Megaphone::Api.new(token: token, network_id: network_id) }