diff --git a/Gemfile.lock b/Gemfile.lock
index f6b55d6..9dbd497 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,31 +1,32 @@
 PATH
   remote: .
   specs:
-    email_valid8 (0.0.4)
+    email_valid8 (0.0.6)
       activemodel
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (5.2.3)
-      activesupport (= 5.2.3)
-    activesupport (5.2.3)
+    activemodel (6.0.2.1)
+      activesupport (= 6.0.2.1)
+    activesupport (6.0.2.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+      zeitwerk (~> 2.2)
     coderay (1.1.2)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.6)
     diff-lcs (1.3)
     faker (0.3.1)
-    i18n (1.6.0)
+    i18n (1.8.2)
       concurrent-ruby (~> 1.0)
     method_source (0.9.2)
-    minitest (5.11.3)
+    minitest (5.14.0)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rake (0.9.6)
+    rake (12.3.3)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
@@ -40,8 +41,9 @@ GEM
       rspec-support (~> 3.8.0)
     rspec-support (3.8.2)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
+    zeitwerk (2.2.2)
 
 PLATFORMS
   ruby
@@ -50,5 +52,5 @@ DEPENDENCIES
   email_valid8!
   faker (~> 0)
   pry (~> 0.12.2)
-  rake (~> 0)
+  rake (~> 12)
   rspec (~> 3.7)
diff --git a/email_valid8.gemspec b/email_valid8.gemspec
index a97d58f..3d56c3d 100644
--- a/email_valid8.gemspec
+++ b/email_valid8.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.add_dependency('activemodel', '>= 0')
 
   s.add_development_dependency('faker', '~> 0')
-  s.add_development_dependency('rake', '~> 0')
+  s.add_development_dependency('rake', '~> 12')
   s.add_development_dependency('rspec', '~> 3.7')
   s.add_development_dependency('pry', '~> 0.12.2')
 end