diff --git a/lib/active_utils/country.rb b/lib/active_utils/country.rb
index 4dc852a..539607e 100644
--- a/lib/active_utils/country.rb
+++ b/lib/active_utils/country.rb
@@ -320,7 +320,7 @@ def to_s
     COUNTRIES_THAT_DO_NOT_USE_POSTALCODES = %w(
       QA BZ BS BF BJ AG AE AI AO AW HK
       FJ ML JM ZW YE UG TV TT TG TD PA
-      CW GH SS
+      CW GH SS BO
     )
 
     def uses_postal_codes?