diff --git a/lib/perpetuity/postgres/table/attribute.rb b/lib/perpetuity/postgres/table/attribute.rb
index <HASH>..<HASH> 100644
--- a/lib/perpetuity/postgres/table/attribute.rb
+++ b/lib/perpetuity/postgres/table/attribute.rb
@@ -1,3 +1,5 @@
+require "bigdecimal"
+
 module Perpetuity
   class Postgres
     class Table
Require bigdecimal library to avoid undefined constant error