diff --git a/src/constants/error-messages.js b/src/constants/error-messages.js
index c5659fda..90493221 100644
--- a/src/constants/error-messages.js
+++ b/src/constants/error-messages.js
@@ -16,7 +16,7 @@ const errorMessages = Object.freeze({
     CITY_REQUIRED: 'City is required.',
     STATE_REQUIRED: 'State is required.',
     ZIP_REQUIRED: 'ZIP is required.',
-    ZIP_FORMAT: 'Please enter a valid ZIP.',
+    ZIP_FORMAT: 'Zip must be 5 digits.',
     LICENSE_PLATE_REQUIRED: 'Please enter your license plate number',
     REGISTRATION_ZIP_REQUIRED: 'Please enter your registration ZIP code',
     FIRST_NAME_REQUIRED: 'Please enter your first name',
diff --git a/src/iss-components/address-questions/address-questions.vue b/src/iss-components/address-questions/address-questions.vue
index daa50eec..fd18db94 100644
--- a/src/iss-components/address-questions/address-questions.vue
+++ b/src/iss-components/address-questions/address-questions.vue
@@ -108,7 +108,7 @@ defineRule('street-address-required', required(errorMessages.STREET_ADDRESS_REQU
 defineRule('city-required', required(errorMessages.CITY_REQUIRED));
 defineRule('state-required', required(errorMessages.STATE_REQUIRED));
 defineRule('zip-code-required', required(errorMessages.ZIP_REQUIRED));
-defineRule('zip-code-format', regex(/(^\d{5}$)|(^\d{5}-\d{4}$)/, errorMessages.ZIP_FORMAT));
+defineRule('zip-code-format', regex(/^\d{5}$/, errorMessages.ZIP_FORMAT));
 
 export default {
     name: 'address-questions',