diff --git a/Gemfile.lock b/Gemfile.lock
index 92d445b..ce2e929 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
     multi_json (1.13.1)
     multipart-post (2.1.1)
     pbkdf2-ruby (0.2.1)
-    rake (10.5.0)
+    rake (13.0.1)
     scrypt (3.0.6)
       ffi-compiler (>= 1.0, < 2.0)
 
@@ -44,7 +44,7 @@ DEPENDENCIES
   bundler (~> 1.16)
   laksa!
   minitest (~> 5.0)
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.17.2
diff --git a/laksa.gemspec b/laksa.gemspec
index daf21a9..6a17ebc 100644
--- a/laksa.gemspec
+++ b/laksa.gemspec
@@ -35,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.16"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_dependency "bitcoin-secp256k1"
   spec.add_dependency "scrypt"