diff --git a/ghost/members-importer/lib/MembersCSVImporterStripeUtils.js b/ghost/members-importer/lib/MembersCSVImporterStripeUtils.js
index 82f19adb40..113d97295a 100644
--- a/ghost/members-importer/lib/MembersCSVImporterStripeUtils.js
+++ b/ghost/members-importer/lib/MembersCSVImporterStripeUtils.js
@@ -153,7 +153,8 @@ module.exports = class MembersCSVImporterStripeUtils {
             await this._stripeAPIService.updateSubscriptionItemPrice(
                 stripeSubscription.id,
                 stripeSubscriptionItem.id,
-                newStripePrice.id
+                newStripePrice.id,
+                {prorationBehavior: 'none'}
             );
 
             stripePriceId = newStripePrice.id;
@@ -167,7 +168,8 @@ module.exports = class MembersCSVImporterStripeUtils {
                 await this._stripeAPIService.updateSubscriptionItemPrice(
                     stripeSubscription.id,
                     stripeSubscriptionItem.id,
-                    stripePriceId
+                    stripePriceId,
+                    {prorationBehavior: 'none'}
                 );
             }
         }
diff --git a/ghost/members-importer/test/MembersCSVImporterStripeUtils.test.js b/ghost/members-importer/test/MembersCSVImporterStripeUtils.test.js
index 9b1176613d..f76159c72e 100644
--- a/ghost/members-importer/test/MembersCSVImporterStripeUtils.test.js
+++ b/ghost/members-importer/test/MembersCSVImporterStripeUtils.test.js
@@ -304,7 +304,8 @@ describe('MembersCSVImporterStripeUtils', function () {
             stripeAPIServiceStub.updateSubscriptionItemPrice.calledWithExactly(
                 stripeCustomer.subscriptions.data[0].id,
                 stripeCustomerSubscriptionItem.id,
-                GHOST_PRODUCT_STRIPE_PRICE_ID
+                GHOST_PRODUCT_STRIPE_PRICE_ID,
+                {prorationBehavior: 'none'}
             ).should.be.true();
         });
 
@@ -346,7 +347,8 @@ describe('MembersCSVImporterStripeUtils', function () {
             stripeAPIServiceStub.updateSubscriptionItemPrice.calledWithExactly(
                 stripeCustomer.subscriptions.data[0].id,
                 stripeCustomerSubscriptionItem.id,
-                NEW_STRIPE_PRICE_ID
+                NEW_STRIPE_PRICE_ID,
+                {prorationBehavior: 'none'}
             ).should.be.true();
         });
 
diff --git a/ghost/stripe/lib/StripeAPI.js b/ghost/stripe/lib/StripeAPI.js
index 504b8b0c1f..999e5a0155 100644
--- a/ghost/stripe/lib/StripeAPI.js
+++ b/ghost/stripe/lib/StripeAPI.js
@@ -698,20 +698,23 @@ module.exports = class StripeAPI {
      * @param {string} subscriptionId - The ID of the Subscription to modify
      * @param {string} id - The ID of the SubscriptionItem
      * @param {string} price - The ID of the new Price
+     * @param {object} [options={}] - Additional data to set on the subscription object
+     * @param {('always_invoice'|'create_prorations'|'none')} [options.prorationBehavior='always_invoice'] - The proration behavior to use. See [Stripe docs](https://docs.stripe.com/api/subscriptions/update#update_subscription-proration_behavior) for more info
+     * @param {string} [options.cancellationReason=null] - The user defined cancellation reason
      *
      * @returns {Promise<import('stripe').Stripe.Subscription>}
      */
-    async updateSubscriptionItemPrice(subscriptionId, id, price) {
+    async updateSubscriptionItemPrice(subscriptionId, id, price, options = {}) {
         await this._rateLimitBucket.throttle();
         const subscription = await this._stripe.subscriptions.update(subscriptionId, {
-            proration_behavior: 'always_invoice',
+            proration_behavior: options.prorationBehavior || 'always_invoice',
             items: [{
                 id,
                 price
             }],
             cancel_at_period_end: false,
             metadata: {
-                cancellation_reason: null
+                cancellation_reason: options.cancellationReason ?? null
             }
         });
         return subscription;