diff --git a/Gemfile.lock b/Gemfile.lock
index f4423f5..ab6f02e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
   specs:
     diff-lcs (1.3)
     libxml-ruby (2.9.0)
-    rake (12.3.1)
+    rake (13.0.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)
@@ -29,7 +29,7 @@ PLATFORMS
 
 DEPENDENCIES
   happymapper!
-  rake (~> 12.3.1)
+  rake (~> 13.0.1)
   rspec (~> 3.7)
 
 BUNDLED WITH
diff --git a/happymapper.gemspec b/happymapper.gemspec
index a61cb62..baab876 100644
--- a/happymapper.gemspec
+++ b/happymapper.gemspec
@@ -17,5 +17,5 @@ Gem::Specification.new do |s|
   s.add_dependency              'libxml-ruby', '~> 2.9'
 
   s.add_development_dependency  'rspec', '~> 3.7'
-  s.add_development_dependency  'rake', '~> 12.3.1'
+  s.add_development_dependency  'rake', '~> 13.0.1'
 end