diff --git a/Gemfile.lock b/Gemfile.lock
index 202402f..8296c28 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
     rack (2.0.7)
     rack-protection (2.0.5)
       rack
-    rake (10.5.0)
+    rake (12.3.3)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
@@ -90,7 +90,7 @@ DEPENDENCIES
   fluentd (~> 1.2.6)
   fluentd-plugin-workato-filter!
   pry-byebug (~> 3.7.0)
-  rake (~> 10.0)
+  rake (~> 12.3)
   rspec (~> 3.0)
   sinatra
   sinatra-contrib
diff --git a/fluentd-plugin-workato-filter.gemspec b/fluentd-plugin-workato-filter.gemspec
index e566bf2..ccff2a2 100644
--- a/fluentd-plugin-workato-filter.gemspec
+++ b/fluentd-plugin-workato-filter.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 2.0"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "test-unit", "~> 3.3.1"
   spec.add_development_dependency "fluentd", "~> 1.2.6"