diff --git a/Gemfile.lock b/Gemfile.lock
index a2a31d1..d67b916 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,13 +2,13 @@ PATH
   remote: .
   specs:
     http2client (0.1.5)
-      http-2 (~> 0.9.0)
+      http-2 (~> 0.10.1)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    http-2 (0.9.1)
-    rake (10.5.0)
+    http-2 (0.10.2)
+    rake (13.0.3)
 
 PLATFORMS
   ruby
@@ -16,7 +16,7 @@ PLATFORMS
 DEPENDENCIES
   bundler (~> 1.16)
   http2client!
-  rake (~> 10.0)
+  rake (~> 13.0)
 
 BUNDLED WITH
    1.16.1
diff --git a/http2client.gemspec b/http2client.gemspec
index cbba1c1..6b46b71 100644
--- a/http2client.gemspec
+++ b/http2client.gemspec
@@ -30,6 +30,6 @@ 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_dependency "http-2", "~> 0.10.1"
 end