Gemfile.lock in relaton-ietf-0.6.3 vs Gemfile.lock in relaton-ietf-0.6.4

@@ -1,16 +1,16 @@
 PATH
   remote: .
   specs:
-    relaton-ietf (0.6.3)
+    relaton-ietf (0.6.4)
       relaton-bib (~> 0.3.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     byebug (11.0.1)
     coderay (1.1.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     debase (0.2.3)
@@ -30,14 +30,14 @@
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     pry-byebug (3.7.0)
       byebug (~> 11.0)
       pry (~> 0.10)
-    public_suffix (3.1.1)
+    public_suffix (4.0.1)
     rake (10.5.0)
-    relaton-bib (0.3.5)
+    relaton-bib (0.3.6)
       addressable
-      nokogiri (~> 1.10)
+      nokogiri
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
       rspec-mocks (~> 3.8.0)
     rspec-core (3.8.2)