diff --git a/Gemfile b/Gemfile
index 2fb242d..e85924d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 ruby '2.6.5'
 
 group :development do
-  gem 'rake', '~> 10.0'
+  gem 'rake', '~> 13.0'
   gem 'jekyll', '~> 2.0'
   gem 'octopress-hooks', '~> 2.2'
   gem 'octopress-date-format', '~> 2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index dd6315a..285ce95 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,14 +66,14 @@ GEM
       jekyll (>= 2.0)
     parslet (1.5.0)
       blankslate (~> 2.0)
-    posix-spawn (0.3.11)
+    posix-spawn (0.3.13)
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
     rack (1.6.4)
     rack-protection (1.5.3)
       rack
-    rake (10.5.0)
+    rake (13.0.1)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
@@ -95,7 +95,7 @@ GEM
     tilt (2.0.5)
     toml (0.1.2)
       parslet (~> 1.5.0)
-    yajl-ruby (1.4.1)
+    yajl-ruby (1.2.3)
 
 PLATFORMS
   ruby
@@ -108,7 +108,7 @@ DEPENDENCIES
   jekyll-sitemap
   octopress-date-format (~> 2.0)
   octopress-hooks (~> 2.2)
-  rake (~> 10.0)
+  rake (~> 13.0)
   rb-fsevent (~> 0.9)
   rdiscount (~> 2.0)
   rubypants (~> 0.2.0)