diff --git a/unique_validation_inspector.gemspec b/unique_validation_inspector.gemspec
index c1d32ae..0c6b816 100644
--- a/unique_validation_inspector.gemspec
+++ b/unique_validation_inspector.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rails", ['>= 3.0.0']
 
   spec.add_development_dependency "bundler", "~> 1.15"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "activerecord", ['>= 3.0.0']
   spec.add_development_dependency "sqlite3", "~> 1.3.13"
 end