diff --git a/android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/ContentJson.kt b/android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/ContentJson.kt
index 8bc15b85f..45e6280f1 100644
--- a/android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/ContentJson.kt
+++ b/android/src/main/java/expo/modules/xmtpreactnativesdk/wrappers/ContentJson.kt
@@ -176,7 +176,7 @@ class ContentJson(
             )
 
             ContentTypeGroupUpdated.id -> mapOf(
-                "groupChange" to mapOf(
+                "groupUpdated" to mapOf(
                     "membersAdded" to (content as GroupUpdated).addedInboxesList.map {
                         mapOf(
                             "inboxId" to it.inboxId,
diff --git a/example/src/GroupScreen.tsx b/example/src/GroupScreen.tsx
index c55116d26..38c2a5357 100644
--- a/example/src/GroupScreen.tsx
+++ b/example/src/GroupScreen.tsx
@@ -31,7 +31,7 @@ import {
   StaticAttachmentContent,
   ReplyContent,
   useClient,
-  GroupChangeContent,
+  GroupUpdatedContent,
 } from 'xmtp-react-native-sdk'
 import { ConversationSendPayload } from 'xmtp-react-native-sdk/lib/types'
 
@@ -1074,16 +1074,16 @@ function formatAddress(address: string) {
   return `${address.slice(0, 6)}…${address.slice(-4)}`
 }
 
-function GroupChangeContents({ content }: { content: GroupChangeContent }) {
+function GroupUpdatedContents({ content }: { content: GroupUpdatedContent }) {
   return (
     <>
       {content.membersAdded.length > 0 &&
         (content.membersAdded.length === 1 ? (
           <Text style={{ opacity: 0.5, fontStyle: 'italic' }}>
             {`${formatAddress(
-              content.membersAdded[0].address
+              content.membersAdded[0].inboxId
             )} has been added by ${formatAddress(
-              content.membersAdded[0].initiatedByAddress
+              content.membersAdded[0].initiatedByInboxId
             )}`}
           </Text>
         ) : (
@@ -1091,7 +1091,7 @@ function GroupChangeContents({ content }: { content: GroupChangeContent }) {
             {`${
               content.membersAdded.length
             } members have been added by ${formatAddress(
-              content.membersAdded[0].initiatedByAddress
+              content.membersAdded[0].initiatedByInboxId
             )}`}
           </Text>
         ))}
@@ -1099,9 +1099,9 @@ function GroupChangeContents({ content }: { content: GroupChangeContent }) {
         (content.membersRemoved.length === 1 ? (
           <Text style={{ opacity: 0.5, fontStyle: 'italic' }}>
             {`${formatAddress(
-              content.membersRemoved[0].address
+              content.membersRemoved[0].inboxId
             )} has been removed by ${formatAddress(
-              content.membersRemoved[0].initiatedByAddress
+              content.membersRemoved[0].initiatedByInboxId
             )}`}
           </Text>
         ) : (
@@ -1109,7 +1109,7 @@ function GroupChangeContents({ content }: { content: GroupChangeContent }) {
             {`${
               content.membersRemoved.length
             } members have been removed by ${formatAddress(
-              content.membersRemoved[0].initiatedByAddress
+              content.membersRemoved[0].initiatedByInboxId
             )}`}
           </Text>
         ))}
@@ -1172,7 +1172,7 @@ function MessageContents({
     )
   }
   if (contentTypeId === 'xmtp.org/group_membership_change:1.0') {
-    return <GroupChangeContents content={content} />
+    return <GroupUpdatedContents content={content} />
   }
 
   return (
diff --git a/example/src/contentTypes/contentTypes.ts b/example/src/contentTypes/contentTypes.ts
index 966ce8f90..51b3e1e74 100644
--- a/example/src/contentTypes/contentTypes.ts
+++ b/example/src/contentTypes/contentTypes.ts
@@ -1,5 +1,5 @@
 import {
-  GroupChangeCodec,
+  GroupUpdatedCodec,
   ReactionCodec,
   ReplyCodec,
   RemoteAttachmentCodec,
@@ -11,7 +11,7 @@ export const supportedCodecs = [
   new ReplyCodec(),
   new RemoteAttachmentCodec(),
   new StaticAttachmentCodec(),
-  new GroupChangeCodec(),
+  new GroupUpdatedCodec(),
 ]
 
 export type SupportedContentTypes = typeof supportedCodecs
diff --git a/ios/Wrappers/DecodedMessageWrapper.swift b/ios/Wrappers/DecodedMessageWrapper.swift
index b52f3617e..03fd5c305 100644
--- a/ios/Wrappers/DecodedMessageWrapper.swift
+++ b/ios/Wrappers/DecodedMessageWrapper.swift
@@ -163,15 +163,15 @@ struct ContentJson {
 		case ContentTypeReadReceipt.id where content is XMTP.ReadReceipt:
 			return ["readReceipt": ""]
 		case ContentTypeGroupUpdated.id where content is XMTP.GroupUpdated:
-			let groupChange = content as! XMTP.GroupUpdated
-			return ["groupChange": [
-				"membersAdded": groupChange.addedInboxes.map { member in
+			let groupUpdated = content as! XMTP.GroupUpdated
+			return ["groupUpdated": [
+				"membersAdded": groupUpdated.addedInboxes.map { member in
 					[
 						"inboxId": member.inboxID,
 						"initiatedByInboxId": member.initiatedByInboxID
 					]
 				},
-				"membersRemoved": groupChange.removedInboxes.map { member in
+				"membersRemoved": groupUpdated.removedInboxes.map { member in
 					[
 						"inboxId": member.inboxID,
 						"initiatedByInboxId": member.initiatedByInboxID
diff --git a/src/index.ts b/src/index.ts
index 559c9ef88..ed720fb6e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -25,7 +25,7 @@ import { getAddress } from './utils/address'
 
 export * from './context'
 export * from './hooks'
-export { GroupChangeCodec } from './lib/NativeCodecs/GroupChangeCodec'
+export { GroupUpdatedCodec } from './lib/NativeCodecs/GroupUpdatedCodec'
 export { ReactionCodec } from './lib/NativeCodecs/ReactionCodec'
 export { ReadReceiptCodec } from './lib/NativeCodecs/ReadReceiptCodec'
 export { RemoteAttachmentCodec } from './lib/NativeCodecs/RemoteAttachmentCodec'
diff --git a/src/lib/NativeCodecs/GroupChangeCodec.ts b/src/lib/NativeCodecs/GroupChangeCodec.ts
deleted file mode 100644
index c5d5b446e..000000000
--- a/src/lib/NativeCodecs/GroupChangeCodec.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import {
-  ContentTypeId,
-  GroupChangeContent,
-  NativeContentCodec,
-  NativeMessageContent,
-} from '../ContentCodec'
-
-export class GroupChangeCodec
-  implements NativeContentCodec<GroupChangeContent>
-{
-  contentKey: 'groupChange' = 'groupChange'
-  contentType: ContentTypeId = {
-    authorityId: 'xmtp.org',
-    typeId: 'group_membership_change',
-    versionMajor: 1,
-    versionMinor: 0,
-  }
-  // Should never have to encode since only sent from Rust backend
-  encode(): NativeMessageContent {
-    return {}
-  }
-
-  decode(nativeContent: NativeMessageContent): GroupChangeContent {
-    return nativeContent.groupChange!
-  }
-
-  fallback(): string | undefined {
-    return undefined
-  }
-}
diff --git a/src/lib/types/ContentCodec.ts b/src/lib/types/ContentCodec.ts
index 00b6c93d4..a869931ed 100644
--- a/src/lib/types/ContentCodec.ts
+++ b/src/lib/types/ContentCodec.ts
@@ -53,14 +53,14 @@ export type RemoteAttachmentContent = RemoteAttachmentMetadata & {
   url: string
 }
 
-export type GroupChangeEntry = {
-  address: string
-  initiatedByAddress: string
+export type GroupUpdatedEntry = {
+  inboxId: string
+  initiatedByInboxId: string
 }
 
-export type GroupChangeContent = {
-  membersAdded: GroupChangeEntry[]
-  membersRemoved: GroupChangeEntry[]
+export type GroupUpdatedContent = {
+  membersAdded: GroupUpdatedEntry[]
+  membersRemoved: GroupUpdatedEntry[]
 }
 
 // This contains a message that has been prepared for sending.
@@ -101,7 +101,7 @@ export type NativeMessageContent = {
   remoteAttachment?: RemoteAttachmentContent
   readReceipt?: ReadReceiptContent
   encoded?: string
-  groupChange?: GroupChangeContent
+  groupUpdated?: GroupUpdatedContent
 }
 
 export interface JSContentCodec<T> {