diff --git a/CHANGES.md b/CHANGES.md
index 1ddc586..1999edb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,8 @@
 # Changes
 
+* Remove unused `pry` dependency
+* Update versions of dependencies
+
 ## 0.4.1
 
 * Improve notifications. Via #30
diff --git a/guard-puma.gemspec b/guard-puma.gemspec
index 508d6f1..8dab26a 100644
--- a/guard-puma.gemspec
+++ b/guard-puma.gemspec
@@ -16,8 +16,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency              "guard", "~> 2.14"
   gem.add_dependency              "guard-compat", "~> 1.2"
   gem.add_dependency              "puma", "~> 3.6"
-  gem.add_development_dependency  "rake", "~> 10.4"
-  gem.add_development_dependency  "rspec", "~> 3.5.0"
-  gem.add_development_dependency  "guard-rspec", "~> 4.7.0"
-  gem.add_development_dependency  "pry"
+  gem.add_development_dependency  "rake", "~> 12"
+  gem.add_development_dependency  "rspec", "~> 3.7"
+  gem.add_development_dependency  "guard-rspec", "~> 4.7"
 end
diff --git a/spec/lib/guard/puma/runner_spec.rb b/spec/lib/guard/puma/runner_spec.rb
index 46f4792..d700f17 100644
--- a/spec/lib/guard/puma/runner_spec.rb
+++ b/spec/lib/guard/puma/runner_spec.rb
@@ -1,6 +1,5 @@
 require 'spec_helper'
 require 'guard/puma/runner'
-require 'pry'
 
 describe Guard::PumaRunner do
   let(:runner) { Guard::PumaRunner.new(options) }