diff --git a/Gemfile.lock b/Gemfile.lock
index 6fc3628..71d35ef 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.1)
-    rake (12.3.0)
+    rake (12.3.3)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
diff --git a/jekyll-display-medium-posts.gemspec b/jekyll-display-medium-posts.gemspec
index 24182fc..3fb727b 100644
--- a/jekyll-display-medium-posts.gemspec
+++ b/jekyll-display-medium-posts.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
 
 
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
   spec.add_development_dependency "rspec", "~> 0"
 
 end