diff --git a/Gemfile.lock b/Gemfile.lock
index fb1a10a..5a24295 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,6 +2,7 @@ PATH
   remote: .
   specs:
     benjamin_moore_api (0.2.1)
+      json
       typhoeus
 
 GEM
@@ -11,7 +12,8 @@ GEM
     ethon (0.12.0)
       ffi (>= 1.3.0)
     ffi (1.10.0)
-    rake (10.5.0)
+    json (2.3.0)
+    rake (13.0.1)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
@@ -34,7 +36,7 @@ PLATFORMS
 DEPENDENCIES
   benjamin_moore_api!
   bundler (~> 2.0)
-  rake (~> 10.0)
+  rake (~> 13.0)
   rspec (~> 3.0)
   typhoeus
 
diff --git a/benjamin_moore_api.gemspec b/benjamin_moore_api.gemspec
index 19e2f82..5be9396 100644
--- a/benjamin_moore_api.gemspec
+++ b/benjamin_moore_api.gemspec
@@ -38,6 +38,6 @@ Gem::Specification.new do |spec|
   spec.add_dependency "json"
 
   spec.add_development_dependency "bundler", "~> 2.0"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"
 end