relaton_iho.gemspec in relaton-iho-1.5.0 vs relaton_iho.gemspec in relaton-iho-1.6.pre1

@@ -30,7 +30,7 @@
   s.add_development_dependency "ruby-jing"
   s.add_development_dependency "simplecov"
   s.add_development_dependency "vcr"
   s.add_development_dependency "webmock"
 
-  s.add_dependency "relaton-bib", "~> 1.5.0"
+  s.add_dependency "relaton-bib", "~> 1.6.pre"
 end