diff --git a/attr_masker.gemspec b/attr_masker.gemspec
index 1ba96c3..a33e3d2 100644
--- a/attr_masker.gemspec
+++ b/attr_masker.gemspec
@@ -25,9 +25,10 @@ Gem::Specification.new do |gem|
 
   gem.add_development_dependency("bundler", ">= 1.15")
   gem.add_development_dependency("combustion", "~> 1.0")
-  gem.add_development_dependency("database_cleaner", "~> 1.8")
-  gem.add_development_dependency("database_cleaner-active_record", "~> 1.8")
-  gem.add_development_dependency("database_cleaner-mongoid", "~> 1.8")
+  gem.add_development_dependency("database_cleaner", "~> 1.8.0")
+  gem.add_development_dependency("database_cleaner-core", "~> 1.8.0")
+  gem.add_development_dependency("database_cleaner-active_record", "~> 1.8.0")
+  gem.add_development_dependency("database_cleaner-mongoid", "~> 1.8.0")
   # Older versions aren't needed as we don't support Rails < 4
   gem.add_development_dependency("mongoid", ">= 5")
   gem.add_development_dependency("pry")