diff --git a/Gemfile b/Gemfile
index c997b4f..d9ece99 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ group :development do
   gem("rdoc", [">= 4.0", "< 7"])
 
   if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("3.0.0")
-    gem("rubocop", "~> 1.1")
+    gem("rubocop", "1.65.0")
     gem("rubocop-minitest", "0.29.0")
     gem("rubocop-packaging", "0.5.2")
     gem("rubocop-performance", "1.16.0")
diff --git a/loofah.gemspec b/loofah.gemspec
index d84ec42..71717f4 100644
--- a/loofah.gemspec
+++ b/loofah.gemspec
@@ -44,6 +44,6 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = ">= 2.5.0"
 
-  spec.add_runtime_dependency("crass", ["~> 1.0.2"])
-  spec.add_runtime_dependency("nokogiri", [">= 1.12.0"])
+  spec.add_dependency("crass", ["~> 1.0.2"])
+  spec.add_dependency("nokogiri", [">= 1.12.0"])
 end