diff --git a/Gemfile b/Gemfile
index be9ff50..b568bdf 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,6 @@ source "https://rubygems.org"
 gem "benchmark-ips"
 gem "coveralls", require: false
 
-gem "allocation_stats" if RUBY_VERSION !~ /^2.0/ && !defined?(JRUBY_VERSION)
+gem "allocation_stats" unless defined?(JRUBY_VERSION)
 
 gemspec