diff --git a/Gemfile.lock b/Gemfile.lock
index 4c62d8f..fdfc691 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,6 @@ PATH
   specs:
     foodsoft_article_import (1.0.0)
       roo (~> 2.9.0)
-      simplecov
 
 GEM
   remote: http://rubygems.org/
@@ -28,6 +27,7 @@ PLATFORMS
 
 DEPENDENCIES
   foodsoft_article_import!
+  simplecov
 
 BUNDLED WITH
    2.4.2
diff --git a/foodsoft_article_import.gemspec b/foodsoft_article_import.gemspec
index e8e54cb..b3a02f9 100644
--- a/foodsoft_article_import.gemspec
+++ b/foodsoft_article_import.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                    'foodsoft_article_import.gemspec', '.github/*.md',
                    'Gemfile', 'Rakefile']
   spec.extra_rdoc_files = ['README.md']
-  
+
   spec.add_dependency 'roo', '~> 2.9.0'
-  spec.add_dependency 'simplecov'
+  spec.add_development_dependency 'simplecov'
 end