diff --git a/Gemfile.lock b/Gemfile.lock
index 3ea6075..ff10b85 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -87,7 +87,7 @@ 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)
@@ -112,7 +112,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.15)
   minimal-mistakes-jekyll!
-  rake (~> 10.0)
+  rake (~> 12.3)
 
 BUNDLED WITH
    1.17.1
diff --git a/minimal-mistakes-jekyll.gemspec b/minimal-mistakes-jekyll.gemspec
old mode 100755
new mode 100644
index 019572a..95b97bf
--- a/minimal-mistakes-jekyll.gemspec
+++ b/minimal-mistakes-jekyll.gemspec
@@ -25,5 +25,5 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "jekyll-include-cache", "~> 0.1"
 
   spec.add_development_dependency "bundler", "~> 1.15"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 12.3"
 end