diff --git a/native/avatars/avatar-hooks.js b/native/avatars/avatar-hooks.js
index b594296ce..9940b62ec 100644
--- a/native/avatars/avatar-hooks.js
+++ b/native/avatars/avatar-hooks.js
@@ -1,279 +1,353 @@
 // @flow
 
 import { useActionSheet } from '@expo/react-native-action-sheet';
 import * as ImagePicker from 'expo-image-picker';
 import * as React from 'react';
 import { Platform } from 'react-native';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
+import {
+  changeThreadSettings,
+  changeThreadSettingsActionTypes,
+} from 'lib/actions/thread-actions.js';
 import { uploadMultimedia } from 'lib/actions/upload-actions.js';
 import {
   updateUserAvatar,
   updateUserAvatarActionTypes,
 } from 'lib/actions/user-actions.js';
 import {
   extensionFromFilename,
   filenameFromPathOrURI,
 } from 'lib/media/file-utils.js';
 import type { ImageAvatarDBContent } from 'lib/types/avatar-types.js';
 import type {
   MediaLibrarySelection,
   MediaMissionFailure,
   UploadMultimediaResult,
 } from 'lib/types/media-types.js';
+import type { UpdateThreadRequest } from 'lib/types/thread-types.js';
 import {
   useDispatchActionPromise,
   useServerCall,
 } from 'lib/utils/action-utils.js';
 
 import SWMansionIcon from '../components/swmansion-icon.react.js';
 import { getCompatibleMediaURI } from '../media/identifier-utils.js';
 import type { MediaResult } from '../media/media-utils.js';
 import { processMedia } from '../media/media-utils.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { useStyles } from '../themes/colors.js';
 import { useStaffCanSee } from '../utils/staff-utils.js';
 
 function useUploadProcessedMedia(): MediaResult => Promise<UploadMultimediaResult> {
   const callUploadMultimedia = useServerCall(uploadMultimedia);
   const uploadProcessedMultimedia: MediaResult => Promise<UploadMultimediaResult> =
     React.useCallback(
       processedMedia => {
         const { uploadURI, filename, mime, dimensions } = processedMedia;
         return callUploadMultimedia(
           {
             uri: uploadURI,
             name: filename,
             type: mime,
           },
           dimensions,
         );
       },
       [callUploadMultimedia],
     );
   return uploadProcessedMultimedia;
 }
 
 function useProcessSelectedMedia(): MediaLibrarySelection => Promise<
   MediaMissionFailure | MediaResult,
 > {
   const hasWiFi = useSelector(state => state.connectivity.hasWiFi);
   const staffCanSee = useStaffCanSee();
 
   const processSelectedMedia = React.useCallback(
     async (selection: MediaLibrarySelection) => {
       const { resultPromise } = processMedia(selection, {
         hasWiFi,
         finalFileHeaderCheck: staffCanSee,
       });
 
       return await resultPromise;
     },
     [hasWiFi, staffCanSee],
   );
 
   return processSelectedMedia;
 }
 
 function useSelectFromGallery(): () => Promise<?MediaLibrarySelection> {
   const selectFromGallery = React.useCallback(async () => {
     try {
       const { assets, canceled } = await ImagePicker.launchImageLibraryAsync({
         mediaTypes: ImagePicker.MediaTypeOptions.Images,
         allowsEditing: true,
         allowsMultipleSelection: false,
         quality: 1,
       });
 
       if (canceled || assets.length === 0) {
         return;
       }
 
       const asset = assets.pop();
       const { width, height, assetId: mediaNativeID } = asset;
       const assetFilename =
         asset.fileName || filenameFromPathOrURI(asset.uri) || '';
       const uri = getCompatibleMediaURI(
         asset.uri,
         extensionFromFilename(assetFilename),
       );
 
       const currentTime = Date.now();
       const selection: MediaLibrarySelection = {
         step: 'photo_library',
         dimensions: { height, width },
         uri,
         filename: assetFilename,
         mediaNativeID,
         selectTime: currentTime,
         sendTime: currentTime,
         retries: 0,
       };
 
       return selection;
     } catch (e) {
       console.log(e);
       return undefined;
     }
   }, []);
 
   return selectFromGallery;
 }
 
 function useSelectFromGalleryAndUpdateUserAvatar(): () => Promise<void> {
   const dispatchActionPromise = useDispatchActionPromise();
   const updateUserAvatarCall = useServerCall(updateUserAvatar);
 
   const selectFromGallery = useSelectFromGallery();
   const processSelectedMedia = useProcessSelectedMedia();
   const uploadProcessedMedia = useUploadProcessedMedia();
 
   const selectFromGalleryAndUpdateUserAvatar = React.useCallback(async () => {
     const selection: ?MediaLibrarySelection = await selectFromGallery();
     if (!selection) {
       console.log('MEDIA_SELECTION_FAILED');
       return;
     }
 
     const processedMedia = await processSelectedMedia(selection);
     if (!processedMedia.success) {
       console.log('MEDIA_PROCESSING_FAILED');
       // TODO (atul): Clean up any temporary files.
       return;
     }
 
     let uploadedMedia: ?UploadMultimediaResult;
     try {
       uploadedMedia = await uploadProcessedMedia(processedMedia);
       // TODO (atul): Clean up any temporary files.
     } catch {
       console.log('MEDIA_UPLOAD_FAILED');
       // TODO (atul): Clean up any temporary files.
       return;
     }
 
     if (!uploadedMedia) {
       console.log('MEDIA_UPLOAD_FAILED');
       // TODO (atul): Clean up any temporary files.
       return;
     }
 
     const imageAvatarUpdateRequest: ImageAvatarDBContent = {
       type: 'image',
       uploadID: uploadedMedia.id,
     };
 
     dispatchActionPromise(
       updateUserAvatarActionTypes,
       updateUserAvatarCall(imageAvatarUpdateRequest),
     );
   }, [
     dispatchActionPromise,
     processSelectedMedia,
     selectFromGallery,
     updateUserAvatarCall,
     uploadProcessedMedia,
   ]);
 
   return selectFromGalleryAndUpdateUserAvatar;
 }
 
+function useSelectFromGalleryAndUpdateThreadAvatar(
+  threadID: string,
+): () => Promise<void> {
+  const dispatchActionPromise = useDispatchActionPromise();
+  const changeThreadSettingsCall = useServerCall(changeThreadSettings);
+
+  const selectFromGallery = useSelectFromGallery();
+  const processSelectedMedia = useProcessSelectedMedia();
+  const uploadProcessedMedia = useUploadProcessedMedia();
+
+  const selectFromGalleryAndUpdateThreadAvatar = React.useCallback(async () => {
+    const selection: ?MediaLibrarySelection = await selectFromGallery();
+    if (!selection) {
+      console.log('MEDIA_SELECTION_FAILED');
+      return;
+    }
+
+    const processedMedia = await processSelectedMedia(selection);
+    if (!processedMedia.success) {
+      console.log('MEDIA_PROCESSING_FAILED');
+      // TODO (atul): Clean up any temporary files.
+      return;
+    }
+
+    let uploadedMedia: ?UploadMultimediaResult;
+    try {
+      uploadedMedia = await uploadProcessedMedia(processedMedia);
+      // TODO (atul): Clean up any temporary files.
+    } catch {
+      console.log('MEDIA_UPLOAD_FAILED');
+      // TODO (atul): Clean up any temporary files.
+      return;
+    }
+
+    if (!uploadedMedia) {
+      console.log('MEDIA_UPLOAD_FAILED');
+      // TODO (atul): Clean up any temporary files.
+      return;
+    }
+
+    const imageAvatarUpdateRequest: ImageAvatarDBContent = {
+      type: 'image',
+      uploadID: uploadedMedia.id,
+    };
+
+    const updateThreadRequest: UpdateThreadRequest = {
+      threadID,
+      changes: {
+        avatar: imageAvatarUpdateRequest,
+      },
+    };
+
+    dispatchActionPromise(
+      changeThreadSettingsActionTypes,
+      changeThreadSettingsCall(updateThreadRequest),
+    );
+  }, [
+    changeThreadSettingsCall,
+    dispatchActionPromise,
+    processSelectedMedia,
+    selectFromGallery,
+    threadID,
+    uploadProcessedMedia,
+  ]);
+
+  return selectFromGalleryAndUpdateThreadAvatar;
+}
+
 type ShowAvatarActionSheetOptions = {
   +id: 'emoji' | 'image' | 'cancel',
   +onPress?: () => mixed,
 };
 function useShowAvatarActionSheet(
   options: $ReadOnlyArray<ShowAvatarActionSheetOptions>,
 ): () => void {
   options = Platform.OS === 'ios' ? [...options, { id: 'cancel' }] : options;
 
   const insets = useSafeAreaInsets();
   const { showActionSheetWithOptions } = useActionSheet();
   const styles = useStyles(unboundStyles);
 
   const showAvatarActionSheet = React.useCallback(() => {
     const texts = options.map((option: ShowAvatarActionSheetOptions) => {
       if (option.id === 'emoji') {
         return 'Use Emoji';
       } else if (option.id === 'image') {
         return 'Select image';
       } else {
         return 'Cancel';
       }
     });
 
     const cancelButtonIndex = options.findIndex(
       option => option.id === 'cancel',
     );
 
     const containerStyle = {
       paddingBotton: insets.bottom,
     };
 
     const icons = options.map(option => {
       if (option.id === 'emoji') {
         return (
           <SWMansionIcon
             name="emote-smile"
             size={22}
             style={styles.bottomSheetIcon}
           />
         );
       } else if (option.id === 'image') {
         return (
           <SWMansionIcon
             name="image-1"
             size={22}
             style={styles.bottomSheetIcon}
           />
         );
       } else {
         return undefined;
       }
     });
 
     const onPressAction = (selectedIndex: ?number) => {
       if (
         selectedIndex === null ||
         selectedIndex === undefined ||
         selectedIndex < 0
       ) {
         return;
       }
       const option = options[selectedIndex];
       if (option.onPress) {
         option.onPress();
       }
     };
 
     showActionSheetWithOptions(
       {
         options: texts,
         cancelButtonIndex,
         containerStyle,
         icons,
       },
       onPressAction,
     );
   }, [
     insets.bottom,
     options,
     showActionSheetWithOptions,
     styles.bottomSheetIcon,
   ]);
 
   return showAvatarActionSheet;
 }
 
 const unboundStyles = {
   bottomSheetIcon: {
     color: '#000000',
   },
 };
 
 export {
   useUploadProcessedMedia,
   useProcessSelectedMedia,
   useShowAvatarActionSheet,
   useSelectFromGalleryAndUpdateUserAvatar,
+  useSelectFromGalleryAndUpdateThreadAvatar,
 };
diff --git a/native/avatars/edit-thread-avatar.react.js b/native/avatars/edit-thread-avatar.react.js
index f456f66cc..0ce610a41 100644
--- a/native/avatars/edit-thread-avatar.react.js
+++ b/native/avatars/edit-thread-avatar.react.js
@@ -1,44 +1,44 @@
 // @flow
 
 import * as React from 'react';
 import { TouchableOpacity } from 'react-native';
 
 import type { RawThreadInfo, ThreadInfo } from 'lib/types/thread-types.js';
 
 import {
-  useSelectFromGalleryAndUpdateUserAvatar,
+  useSelectFromGalleryAndUpdateThreadAvatar,
   useShowAvatarActionSheet,
 } from './avatar-hooks.js';
 import EditAvatarBadge from './edit-avatar-badge.react.js';
 import ThreadAvatar from './thread-avatar.react.js';
 
 type Props = {
   +threadInfo: RawThreadInfo | ThreadInfo,
   +onPressEmojiAvatarFlow: () => mixed,
   +disabled?: boolean,
 };
 function EditThreadAvatar(props: Props): React.Node {
   const { threadInfo, onPressEmojiAvatarFlow, disabled } = props;
 
-  const selectFromGalleryAndUpdateUserAvatar =
-    useSelectFromGalleryAndUpdateUserAvatar();
+  const selectFromGalleryAndUpdateThreadAvatar =
+    useSelectFromGalleryAndUpdateThreadAvatar(threadInfo.id);
 
   const actionSheetConfig = React.useMemo(
     () => [
       { id: 'emoji', onPress: onPressEmojiAvatarFlow },
-      { id: 'image', onPress: selectFromGalleryAndUpdateUserAvatar },
+      { id: 'image', onPress: selectFromGalleryAndUpdateThreadAvatar },
     ],
-    [onPressEmojiAvatarFlow, selectFromGalleryAndUpdateUserAvatar],
+    [onPressEmojiAvatarFlow, selectFromGalleryAndUpdateThreadAvatar],
   );
 
   const showAvatarActionSheet = useShowAvatarActionSheet(actionSheetConfig);
 
   return (
     <TouchableOpacity onPress={showAvatarActionSheet} disabled={disabled}>
       <ThreadAvatar threadInfo={threadInfo} size="profile" />
       {!disabled ? <EditAvatarBadge /> : null}
     </TouchableOpacity>
   );
 }
 
 export default EditThreadAvatar;