diff --git a/devops-service/core/devops-service.rb b/devops-service/core/devops-service.rb
index cd33364..7bf32f1 100644
--- a/devops-service/core/devops-service.rb
+++ b/devops-service/core/devops-service.rb
@@ -1,7 +1,7 @@
 require "wisper"
-require "lib/hash_ext"
-require "lib/nil_class_ext"
-require "lib/string_ext"
+require "lib/core_ext/hash"
+require "lib/core_ext/nil_class"
+require "lib/core_ext/string"
 
 require_relative "devops-loader"
 require_relative "devops-application"
diff --git a/devops-service/lib/hash_ext.rb b/devops-service/lib/core_ext/hash.rb
similarity index 100%
rename from devops-service/lib/hash_ext.rb
rename to devops-service/lib/core_ext/hash.rb
diff --git a/devops-service/lib/nil_class_ext.rb b/devops-service/lib/core_ext/nil_class.rb
similarity index 100%
rename from devops-service/lib/nil_class_ext.rb
rename to devops-service/lib/core_ext/nil_class.rb
diff --git a/devops-service/lib/string_ext.rb b/devops-service/lib/core_ext/string.rb
similarity index 100%
rename from devops-service/lib/string_ext.rb
rename to devops-service/lib/core_ext/string.rb