diff --git a/Gemfile.lock b/Gemfile.lock
index 16c2177..ff40815 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
       concurrent-ruby (~> 1.0)
     minitest (5.12.2)
     rack (2.0.7)
-    rake (0.9.6)
+    rake (13.0.1)
     socksify (1.7.1)
     thread_safe (0.3.6)
     tzinfo (1.2.5)
@@ -35,4 +35,4 @@ PLATFORMS
 DEPENDENCIES
   arbor!
   bundler (~> 1.3)
-  rake (~> 0)
+  rake (~> 13)
diff --git a/arbor.gemspec b/arbor.gemspec
index 56a461e..6db66a1 100644
--- a/arbor.gemspec
+++ b/arbor.gemspec
@@ -21,5 +21,5 @@ Gem::Specification.new do |spec|
   spec.add_dependency "activesupport", ">= 3.0.0"
   spec.add_dependency "httpi", ">= 2.0.5"
   spec.add_development_dependency "bundler", "~> 1.3"
-  spec.add_development_dependency "rake", "~> 0"
+  spec.add_development_dependency "rake", "~> 13"
 end