diff --git a/Gemfile.lock b/Gemfile.lock
index 3939e8e..513cc6d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,7 +54,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.1)
-    rake (10.5.0)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -73,7 +73,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.12)
   jekyll-theme-type!
-  rake (~> 10.0)
+  rake (~> 12.3)
 
 BUNDLED WITH
    1.16.4
diff --git a/jekyll-theme-type.gemspec b/jekyll-theme-type.gemspec
index 1b33870..ae3a0a4 100644
--- a/jekyll-theme-type.gemspec
+++ b/jekyll-theme-type.gemspec
@@ -19,5 +19,5 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "jekyll-category-pages", "~>1.0.0"
 
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end