diff --git a/ibandit.gemspec b/ibandit.gemspec
index 393baf4..09b2e94 100644
--- a/ibandit.gemspec
+++ b/ibandit.gemspec
@@ -3,7 +3,7 @@
 require File.expand_path("lib/ibandit/version", __dir__)
 
 Gem::Specification.new do |gem|
-  gem.add_development_dependency "gc_ruboconfig",   "~> 2.26.0"
+  gem.add_development_dependency "gc_ruboconfig",   "~> 2.29.0"
   gem.add_development_dependency "nokogiri",        "~> 1.6"
   gem.add_development_dependency "pry",             "~> 0.13"
   gem.add_development_dependency "pry-byebug",      "~> 3.9"
diff --git a/lib/ibandit/german_details_converter.rb b/lib/ibandit/german_details_converter.rb
index fbebe9a..75104a9 100644
--- a/lib/ibandit/german_details_converter.rb
+++ b/lib/ibandit/german_details_converter.rb
@@ -270,13 +270,15 @@ def padded_account_number_for_validity
         when "13"
           if unpadded_account_number.size.between?(6, 7)
             unpadded_account_number + "00"
-          else @account_number
+          else
+            @account_number
           end
         when "76"
           case unpadded_account_number.size
           when 7..8
             if Check76.new(@account_number).valid? then @account_number
-            else unpadded_account_number + "00"
+            else
+              unpadded_account_number + "00"
             end
           when 5..6 then unpadded_account_number + "00"
           else @account_number
diff --git a/lib/ibandit/local_details_cleaner.rb b/lib/ibandit/local_details_cleaner.rb
index 435c5c0..2da1ae0 100644
--- a/lib/ibandit/local_details_cleaner.rb
+++ b/lib/ibandit/local_details_cleaner.rb
@@ -42,7 +42,8 @@ def self.required_fields(country_code)
         %i[account_number]
       when "GB", "IE", "MT"
         if Ibandit.bic_finder.nil? then %i[bank_code branch_code account_number]
-        else %i[branch_code account_number]
+        else
+          %i[branch_code account_number]
         end
       when "AU"
         %i[branch_code account_number]
diff --git a/spec/ibandit/german_details_converter_spec.rb b/spec/ibandit/german_details_converter_spec.rb
index 977461e..9e98679 100644
--- a/spec/ibandit/german_details_converter_spec.rb
+++ b/spec/ibandit/german_details_converter_spec.rb
@@ -19,7 +19,7 @@
 
         convertor.fetch("valid", []).each do |tuple|
           context "bank code: #{tuple['bank_code']} account number " \
-            "#{tuple['account_number']}" do
+                  "#{tuple['account_number']}" do
             let(:bank_code) do
               tuple["bank_code"]
             end
@@ -44,7 +44,7 @@
 
         convertor.fetch("invalid", []).each do |tuple|
           context "bank code: #{tuple['bank_code']} account number " \
-            "#{tuple['account_number']}" do
+                  "#{tuple['account_number']}" do
             let(:bank_code) { tuple["bank_code"] || "00000000" }
             let(:account_number) { tuple["account_number"] }
 
diff --git a/spec/ibandit/iban_spec.rb b/spec/ibandit/iban_spec.rb
index 3e3e11e..8e677d8 100755
--- a/spec/ibandit/iban_spec.rb
+++ b/spec/ibandit/iban_spec.rb
@@ -1061,7 +1061,7 @@
           iban.valid_length?
           expect(iban.errors).
             to include(length: "Length doesn't match SWIFT specification " \
-                       "(expected 22 characters, received 20)")
+                               "(expected 22 characters, received 20)")
         end
       end
 
@@ -1313,7 +1313,7 @@
           iban.valid_branch_code_length?
           expect(iban.errors).
             to include(branch_code: "is the wrong length (should be 6 " \
-                       "characters)")
+                                    "characters)")
         end
       end