diff --git a/Gemfile b/Gemfile
index 38f11f1..ff8baf9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,10 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in grape_logging.gemspec
 gemspec
+
+gem 'rake', '~> 13.3'
+gem 'rspec', '~> 3.5'
+
+# This is pinned to an exact version otherwise we can't know which rules
+# are in play at any given time in different environments.
+gem 'rubocop', '1.77.0'
diff --git a/grape_logging.gemspec b/grape_logging.gemspec
index 455251f..cc37233 100644
--- a/grape_logging.gemspec
+++ b/grape_logging.gemspec
@@ -22,11 +22,4 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'grape', '>= 2.4.0'
   spec.add_dependency 'rack'
-
-  spec.add_development_dependency 'rake', '~> 13.3'
-  spec.add_development_dependency 'rspec', '~> 3.5'
-
-  # This is pinned to an exact version otherwise we can't know which rules
-  # are in play at any given time in different environments.
-  spec.add_development_dependency 'rubocop', '1.77.0'
 end