diff --git a/gemfiles/grape-1.x/Gemfile b/gemfiles/grape-1.x/Gemfile
index ce00d8a9..21936c82 100644
--- a/gemfiles/grape-1.x/Gemfile
+++ b/gemfiles/grape-1.x/Gemfile
@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 gemspec path: "../.."
 
-gem "grape", "~> 1"
+gem "grape", "~> 2"
 
 # Test additional libraries with oldest and newest versions of Grape
 eval_gemfile "../Gemfile.additional"