diff --git a/Gemfile.lock b/Gemfile.lock
index 87851cb..a0b0b69 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    dunders (1.0.3)
+    dunders (1.0.4)
 
 GEM
   remote: https://rubygems.org/
@@ -43,7 +43,7 @@ GEM
     pathutil (0.16.0)
       forwardable-extended (~> 2.6)
     public_suffix (3.0.1)
-    rake (10.5.0)
+    rake (12.3.3)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -67,7 +67,7 @@ DEPENDENCIES
   jekyll-feed
   jekyll-paginate
   jekyll-sitemap
-  rake (~> 10.0)
+  rake (~> 12.3)
 
 BUNDLED WITH
    1.15.4
diff --git a/__s.gemspec b/__s.gemspec
index 22c2d9f..f68ff4d 100644
--- a/__s.gemspec
+++ b/__s.gemspec
@@ -20,5 +20,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "jekyll", "~> 3.2"
   spec.add_development_dependency "bundler", "~> 1.12"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end