diff --git a/lib/gemdiff/bundle_inspector.rb b/lib/gemdiff/bundle_inspector.rb
index 2a39503..beabfd8 100644
--- a/lib/gemdiff/bundle_inspector.rb
+++ b/lib/gemdiff/bundle_inspector.rb
@@ -8,8 +8,7 @@ def list
       @list ||=
         outdated
           .split("\n")
-          .map { |line| new_outdated_gem(line) }
-          .compact
+          .filter_map { |line| new_outdated_gem(line) }
     end
 
     def outdated
diff --git a/lib/gemdiff/outdated_gem.rb b/lib/gemdiff/outdated_gem.rb
index b329294..7af125d 100644
--- a/lib/gemdiff/outdated_gem.rb
+++ b/lib/gemdiff/outdated_gem.rb
@@ -105,7 +105,7 @@ def find_name(name)
 
     def clean_url(url)
       uri = URI.parse(url)
-      uri.path.gsub! %r{/+}, "/"
+      uri.path.squeeze!("/")
       uri.to_s
     end
 
diff --git a/lib/gemdiff/repo_finder.rb b/lib/gemdiff/repo_finder.rb
index 72b3c59..c44454a 100644
--- a/lib/gemdiff/repo_finder.rb
+++ b/lib/gemdiff/repo_finder.rb
@@ -115,7 +115,7 @@ def gemspec_homepage(gem_name)
         yaml = gemspec(gem_name)
         return if yaml.to_s.empty?
         spec = YAML.safe_load(yaml, permitted_classes: PERMITTED_GEMSPEC_CLASSES)
-        return clean_url(spec.homepage) if spec.homepage =~ GITHUB_REPO_REGEX
+        return clean_url(spec.homepage) if GITHUB_REPO_REGEX.match?(spec.homepage)
         match = spec.description.to_s.match(GITHUB_REPO_REGEX)
         match && clean_url(match[0])
       end