diff --git a/lib/active_remote/association.rb b/lib/active_remote/association.rb
index 6493b31..d01511d 100644
--- a/lib/active_remote/association.rb
+++ b/lib/active_remote/association.rb
@@ -39,7 +39,7 @@ def belongs_to(belongs_to_klass, options = {})
           search_hash[:guid] = object.send(foreign_key)
           search_hash[options[:scope]] = object.send(options[:scope]) if options.key?(:scope)
 
-          search_hash.values.any?(&:nil?) ? nil : klass.search(search_hash).first
+          search_hash.values.any?(&:nil?) ? nil : klass.search(**search_hash).first
         end
       end
 
@@ -80,7 +80,7 @@ def has_many(has_many_class, options = {})
           search_hash[foreign_key] = object.guid
           search_hash[options[:scope]] = object.send(options[:scope]) if options.key?(:scope)
 
-          search_hash.values.any?(&:nil?) ? [] : klass.search(search_hash)
+          search_hash.values.any?(&:nil?) ? [] : klass.search(**search_hash)
         end
 
         options[:has_many] = true
@@ -120,7 +120,7 @@ def has_one(has_one_klass, options = {})
           search_hash[foreign_key] = object.guid
           search_hash[options[:scope]] = object.send(options[:scope]) if options.key?(:scope)
 
-          search_hash.values.any?(&:nil?) ? nil : klass.search(search_hash).first
+          search_hash.values.any?(&:nil?) ? nil : klass.search(**search_hash).first
         end
       end
 
diff --git a/spec/lib/active_remote/persistence_spec.rb b/spec/lib/active_remote/persistence_spec.rb
index bfd6212..a4fdeda 100644
--- a/spec/lib/active_remote/persistence_spec.rb
+++ b/spec/lib/active_remote/persistence_spec.rb
@@ -351,7 +351,7 @@
     end
 
     it "updates a remote record" do
-      expect(rpc).to receive(:execute).with(:update, "name" => "foo", "guid" => "123")
+      expect(rpc).to receive(:execute).with(:update, {"name" => "foo", "guid" => "123"})
       tag.update_attribute(:name, "foo")
     end