diff --git a/Gemfile.lock b/Gemfile.lock
index 6fd5e14..1e84679 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -53,7 +53,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.3)
-    rake (10.5.0)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -72,7 +72,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.12)
   jekyll-sleek!
-  rake (~> 10.0)
+  rake (~> 12.3)
 
 BUNDLED WITH
    1.15.1
diff --git a/jekyll-sleek.gemspec b/jekyll-sleek.gemspec
index d1a7a9b..c97722f 100644
--- a/jekyll-sleek.gemspec
+++ b/jekyll-sleek.gemspec
@@ -20,5 +20,5 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "jekyll-sitemap", "~> 1.1"
 
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end