diff --git a/app/models/concerns/hstore_update.rb b/app/models/concerns/hstore_update.rb
index 02345378..e131d6bb 100644
--- a/app/models/concerns/hstore_update.rb
+++ b/app/models/concerns/hstore_update.rb
@@ -18,7 +18,7 @@ def hstore_update(column, updater)
   end
 
   def hstore_sanitize(string)
-    self.class.sanitize string.to_s.gsub /["'=>\(\)]/, ''
+    self.class.connection.quote string.to_s.gsub /["'=>\(\)]/, ''
   end
 
   def hstore_escape(key_pairs)