Gemfile in rbs-3.3.2 vs Gemfile in rbs-3.4.0.pre.1

@@ -15,10 +15,10 @@
 gem 'stackprof'
 gem "goodcheck"
 gem "dbm"
 gem 'digest'
 gem 'tempfile'
-gem "rdoc", "~> 6.4.0"
+gem "rdoc"
 
 # Test gems
 gem "rbs-amber", path: "test/assets/test-gem"
 
 # Bundled gems