neo4j.gemspec in neo4j-7.0.14 vs neo4j.gemspec in neo4j-7.0.15

- old
+ new

@@ -27,10 +27,10 @@
   s.rdoc_options = ['--quiet', '--title', 'Neo4j.rb', '--line-numbers', '--main', 'README.rdoc', '--inline-source']
 
   s.add_dependency('orm_adapter', '~> 0.5.0')
   s.add_dependency('activemodel', '~> 4')
   s.add_dependency('activesupport', '~> 4')
-  s.add_dependency('neo4j-core', '>= 6.0.0')
+  s.add_dependency('neo4j-core', '>= 6.0.0', '< 7.0.0')
   s.add_dependency('neo4j-community', '~> 2.0') if RUBY_PLATFORM =~ /java/
   s.add_development_dependency('railties', '~> 4')
   s.add_development_dependency('pry')
   s.add_development_dependency('os')
   s.add_development_dependency('rake')