diff --git a/dist/b2b/members.js b/dist/b2b/members.js
index fba50486..0c3258fb 100644
--- a/dist/b2b/members.js
+++ b/dist/b2b/members.js
@@ -56,7 +56,7 @@ class Members {
   deletePhoneNumber(data) {
     return (0, _shared.request)(this.fetchConfig, {
       method: "DELETE",
-      url: `${this.base_path}/${data.organization_id}/members/phone_numbers/${data.member_id}`
+      url: `${this.base_path}/${data.organization_id}/members/mfa_phone_numbers/${data.member_id}`
     });
   }
 
diff --git a/lib/b2b/members.ts b/lib/b2b/members.ts
index 516a4682..0c9ca2fc 100644
--- a/lib/b2b/members.ts
+++ b/lib/b2b/members.ts
@@ -64,11 +64,11 @@ export type MemberSearchOperand =
       filter_value: string[];
     }
   | {
-      filter_name: "member_phone_numbers";
+      filter_name: "member_mfa_phone_numbers";
       filter_value: string[];
     }
   | {
-      filter_name: "member_phone_number_fuzzy";
+      filter_name: "member_mfa_phone_number_fuzzy";
       filter_value: string;
     };
 
@@ -157,7 +157,7 @@ export class Members {
   ): Promise<B2BMemberDeletePhoneNumberResponse> {
     return request(this.fetchConfig, {
       method: "DELETE",
-      url: `${this.base_path}/${data.organization_id}/members/phone_numbers/${data.member_id}`,
+      url: `${this.base_path}/${data.organization_id}/members/mfa_phone_numbers/${data.member_id}`,
     });
   }
 }
diff --git a/lib/b2b/mfa.ts b/lib/b2b/mfa.ts
index 05610cf8..3e5293ca 100644
--- a/lib/b2b/mfa.ts
+++ b/lib/b2b/mfa.ts
@@ -1,5 +1,5 @@
 export interface MemberOptions {
-  phone_number: string;
+  mfa_phone_number: string;
 }
 
 export interface MfaRequired {
diff --git a/lib/b2b/otps.ts b/lib/b2b/otps.ts
index 92d93d1a..1cb9d58b 100644
--- a/lib/b2b/otps.ts
+++ b/lib/b2b/otps.ts
@@ -4,7 +4,7 @@ import { fetchConfig, request } from "../shared";
 export interface B2BOTPsSMSSendRequest {
   organization_id: string;
   member_id: string;
-  phone_number?: string;
+  mfa_phone_number?: string;
   locale?: "en" | "es" | "pt-br" | string;
 }
 
diff --git a/package-lock.json b/package-lock.json
index 5a5a9d6b..f1ef4564 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "stytch",
-  "version": "7.5.0",
+  "version": "7.5.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "stytch",
-      "version": "7.5.0",
+      "version": "7.5.1",
       "license": "MIT",
       "dependencies": {
         "isomorphic-unfetch": "^3.1.0",
diff --git a/package.json b/package.json
index a983f8f1..19a7179b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stytch",
-  "version": "7.5.0",
+  "version": "7.5.1",
   "description": "A wrapper for the Stytch API",
   "types": "./types/lib/index.d.ts",
   "main": "./dist/index.js",
diff --git a/test/b2b/members.test.ts b/test/b2b/members.test.ts
index f8d447fb..d7294335 100644
--- a/test/b2b/members.test.ts
+++ b/test/b2b/members.test.ts
@@ -218,7 +218,7 @@ describe("members.deletePhoneNumber", () => {
     mockRequest((req) => {
       expect(req).toEqual({
         method: "DELETE",
-        path: "organizations/organization-id-1234/members/phone_numbers/member-id-1234",
+        path: "organizations/organization-id-1234/members/mfa_phone_numbers/member-id-1234",
       });
 
       const data = {
diff --git a/test/b2b/otps.test.ts b/test/b2b/otps.test.ts
index 0881eac9..2fe26d48 100644
--- a/test/b2b/otps.test.ts
+++ b/test/b2b/otps.test.ts
@@ -24,7 +24,7 @@ describe("otps.sms.send", () => {
       otps.sms.send({
         organization_id: "organization-id-1234",
         member_id: "member-id-1234",
-        phone_number: "555-555-5555",
+        mfa_phone_number: "555-555-5555",
         locale: "es",
       })
     ).resolves.toMatchObject({
@@ -33,7 +33,7 @@ describe("otps.sms.send", () => {
       data: {
         organization_id: "organization-id-1234",
         member_id: "member-id-1234",
-        phone_number: "555-555-5555",
+        mfa_phone_number: "555-555-5555",
         locale: "es",
       },
     });
diff --git a/types/lib/b2b/members.d.ts b/types/lib/b2b/members.d.ts
index 8a604735..a55226f8 100644
--- a/types/lib/b2b/members.d.ts
+++ b/types/lib/b2b/members.d.ts
@@ -46,10 +46,10 @@ export declare type MemberSearchOperand = {
     filter_name: "statuses";
     filter_value: string[];
 } | {
-    filter_name: "member_phone_numbers";
+    filter_name: "member_mfa_phone_numbers";
     filter_value: string[];
 } | {
-    filter_name: "member_phone_number_fuzzy";
+    filter_name: "member_mfa_phone_number_fuzzy";
     filter_value: string;
 };
 export interface B2BMemberSearchRequest {
diff --git a/types/lib/b2b/mfa.d.ts b/types/lib/b2b/mfa.d.ts
index d6e44b91..3cc87b71 100644
--- a/types/lib/b2b/mfa.d.ts
+++ b/types/lib/b2b/mfa.d.ts
@@ -1,5 +1,5 @@
 export interface MemberOptions {
-    phone_number: string;
+    mfa_phone_number: string;
 }
 export interface MfaRequired {
     member_options: MemberOptions;
diff --git a/types/lib/b2b/otps.d.ts b/types/lib/b2b/otps.d.ts
index 14c02d34..f276b3d9 100644
--- a/types/lib/b2b/otps.d.ts
+++ b/types/lib/b2b/otps.d.ts
@@ -3,7 +3,7 @@ import { fetchConfig } from "../shared";
 export interface B2BOTPsSMSSendRequest {
     organization_id: string;
     member_id: string;
-    phone_number?: string;
+    mfa_phone_number?: string;
     locale?: "en" | "es" | "pt-br" | string;
 }
 export declare type B2BOTPsSMSSendResponse = ResponseWithMember;