diff --git a/Gemfile.lock b/Gemfile.lock
index ddcf00f..8b69897 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rake (10.5.0)
+    rake (13.0.1)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -41,7 +41,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.17)
   pry
-  rake (~> 10.0)
+  rake (~> 13.0)
   rspec
   rspec-core
   tiffkit!
diff --git a/tiffkit.gemspec b/tiffkit.gemspec
index 0e1279d..20b989c 100644
--- a/tiffkit.gemspec
+++ b/tiffkit.gemspec
@@ -26,5 +26,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rspec"
   spec.add_development_dependency "bundler", "~> 1.17"
   spec.add_development_dependency "pry"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
 end