diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8fe9bc311c..f5b13aa242 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 ### 0.19.2 (Next)
 
+#### Fixes
+
+* [#1569](https://github.com/ruby-grape/grape/pull/1569), [#1511](https://github.com/ruby-grape/grape/issues/1511): Upgrade mustermann-grape to 1.0.0 - [@namusyaka](https://github.com/namusyaka).
+* Your contribution here.
+
 #### Features
 
 * [#1555](https://github.com/ruby-grape/grape/pull/1555): Added code coverage w/Coveralls - [@dblock](https://github.com/dblock).
diff --git a/grape.gemspec b/grape.gemspec
index fd203a567e..7a1caae813 100644
--- a/grape.gemspec
+++ b/grape.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.license     = 'MIT'
 
   s.add_runtime_dependency 'rack', '>= 1.3.0'
-  s.add_runtime_dependency 'mustermann-grape', '~> 0.4.0'
+  s.add_runtime_dependency 'mustermann-grape', '~> 1.0.0'
   s.add_runtime_dependency 'rack-accept'
   s.add_runtime_dependency 'activesupport'
   s.add_runtime_dependency 'multi_json', '>= 1.3.2'