diff --git a/app/finders/interesting_findings/multisite.rb b/app/finders/interesting_findings/multisite.rb
index 54621668..5666d68f 100644
--- a/app/finders/interesting_findings/multisite.rb
+++ b/app/finders/interesting_findings/multisite.rb
@@ -13,7 +13,7 @@ module WPScan
 
           return unless [200, 302].include?(res.code)
           return if res.code == 302 && location&.include?('wp-login.php?action=register')
-          return unless res.code == 200 || res.code == 302 && location&.include?('wp-signup.php')
+          return unless res.code == 200 || (res.code == 302 && location&.include?('wp-signup.php'))
 
           target.multisite = true
 
diff --git a/app/models/timthumb.rb b/app/models/timthumb.rb
index 08eaa16a..8753c96d 100644
--- a/app/models/timthumb.rb
+++ b/app/models/timthumb.rb
@@ -30,7 +30,7 @@ module WPScan
       def vulnerabilities
         vulns = []
 
-        vulns << rce_webshot_vuln if version == false || version > '1.35' && version < '2.8.14' && webshot_enabled?
+        vulns << rce_webshot_vuln if version == false || (version > '1.35' && version < '2.8.14' && webshot_enabled?)
         vulns << rce_132_vuln if version == false || version < '1.33'
 
         vulns
diff --git a/lib/wpscan/finders/dynamic_finder/finder.rb b/lib/wpscan/finders/dynamic_finder/finder.rb
index 9ed3e405..c3342ff2 100644
--- a/lib/wpscan/finders/dynamic_finder/finder.rb
+++ b/lib/wpscan/finders/dynamic_finder/finder.rb
@@ -56,7 +56,9 @@ module WPScan
 
           homepage_result = find(target.homepage_res, opts)
 
-          return homepage_result unless homepage_result.nil? || homepage_result.is_a?(Array) && homepage_result&.empty?
+          unless homepage_result.nil? || (homepage_result.is_a?(Array) && homepage_result&.empty?)
+            return homepage_result
+          end
 
           find(target.error_404_res, opts)
         end
diff --git a/wpscan.gemspec b/wpscan.gemspec
index c62e0b7d..f0c37bd7 100644
--- a/wpscan.gemspec
+++ b/wpscan.gemspec
@@ -20,14 +20,14 @@ Gem::Specification.new do |s|
   s.executables           = ['wpscan']
   s.require_paths         = ['lib']
 
-  s.add_dependency 'cms_scanner', '~> 0.13.5'
+  s.add_dependency 'cms_scanner', '~> 0.13.6'
 
   s.add_development_dependency 'bundler',             '>= 1.6'
   s.add_development_dependency 'memory_profiler',     '~> 1.0.0'
   s.add_development_dependency 'rake',                '~> 13.0'
   s.add_development_dependency 'rspec',               '~> 3.10.0'
   s.add_development_dependency 'rspec-its',           '~> 1.3.0'
-  s.add_development_dependency 'rubocop',             '~> 1.20.0'
+  s.add_development_dependency 'rubocop',             '~> 1.21.0'
   s.add_development_dependency 'rubocop-performance', '~> 1.11.0'
   s.add_development_dependency 'simplecov',           '~> 0.21.0'
   s.add_development_dependency 'simplecov-lcov',      '~> 0.8.0'