diff --git a/.rubocop.yml b/.rubocop.yml
index 0ebe0c4..47a746e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -5,6 +5,8 @@ require:
 AllCops:
   TargetRubyVersion: 3.0
   NewCops: enable
+Gemspec/DevelopmentDependencies:
+  EnforcedStyle: gemspec
 Layout/LineLength:
   Exclude:
     - spec/**/*
diff --git a/Gemfile b/Gemfile
index e00964e..7f4f5e9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,12 +2,4 @@
 
 source 'https://rubygems.org'
 
-# Specify your gem's dependencies in digital_scriptorium.gemspec
 gemspec
-
-gem 'pry', '~> 0.15'
-gem 'rake', '~> 13.2'
-gem 'rspec', '~> 3.13'
-gem 'rubocop-rake', '~> 0.6'
-gem 'rubocop-rspec', '~> 3.3'
-gem 'upennlib-rubocop', '~> 1.2'
diff --git a/digital_scriptorium.gemspec b/digital_scriptorium.gemspec
index 2e3f3f9..e2653b6 100644
--- a/digital_scriptorium.gemspec
+++ b/digital_scriptorium.gemspec
@@ -32,4 +32,10 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'representable', '~> 3.2'
   spec.add_dependency 'tty-spinner', '~> 0.9'
   spec.add_dependency 'wikibase_representable', '~> 0.1'
+  spec.add_development_dependency 'bundler', '~> 2.5'
+  spec.add_development_dependency 'rake', '~> 13.2'
+  spec.add_development_dependency 'rspec', '~> 3.13'
+  spec.add_development_dependency 'rubocop-rake', '~> 0.6'
+  spec.add_development_dependency 'rubocop-rspec', '~> 3.3'
+  spec.add_development_dependency 'upennlib-rubocop', '~> 1.2'
 end