diff --git a/Gemfile.lock b/Gemfile.lock
index 2a9dbd3..edc72b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,7 +40,7 @@ GEM
     pathutil (0.16.1)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.2)
-    rake (10.4.2)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -62,7 +62,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.6)
   jekyll-paginate (~> 1.1.0)
   jekyll-theme-clean-blog!
-  rake (~> 10.0)
+  rake (~> 12.3)
 
 BUNDLED WITH
    1.16.6
diff --git a/jekyll-theme-clean-blog.gemspec b/jekyll-theme-clean-blog.gemspec
index 0388a13..389876d 100644
--- a/jekyll-theme-clean-blog.gemspec
+++ b/jekyll-theme-clean-blog.gemspec
@@ -15,5 +15,5 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "jekyll", "~> 3.6"
 
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end