diff --git a/lib/shared/farcaster/farcaster-api.js b/lib/shared/farcaster/farcaster-api.js
--- a/lib/shared/farcaster/farcaster-api.js
+++ b/lib/shared/farcaster/farcaster-api.js
@@ -453,6 +453,42 @@
   );
 }
 
+export type UpdateFarcasterGroupPhotoInput = {
+  +conversationId: string,
+  +photoUrl: string,
+};
+
+function useUpdateFarcasterGroupPhoto(): (
+  input: UpdateFarcasterGroupPhotoInput,
+) => Promise<void> {
+  const { sendFarcasterRequest } = useTunnelbroker();
+  const { addLog } = useDebugLogs();
+  return React.useCallback(
+    async (input: UpdateFarcasterGroupPhotoInput) => {
+      try {
+        await sendFarcasterRequest({
+          apiVersion: 'v2',
+          endpoint: 'direct-cast-group-photo',
+          method: { type: 'POST' },
+          payload: JSON.stringify(input),
+        });
+      } catch (error) {
+        addLog(
+          'Farcaster API: Failed to update group photo',
+          JSON.stringify({
+            conversationId: input.conversationId,
+            photoUrl: input.photoUrl,
+            error: getMessageForException(error),
+          }),
+          new Set([logTypes.FARCASTER, logTypes.ERROR]),
+        );
+        throw error;
+      }
+    },
+    [addLog, sendFarcasterRequest],
+  );
+}
+
 export type UpdateFarcasterSubscriptionInput = {
   +conversationId: string,
   +muted: boolean,
@@ -971,6 +1007,7 @@
   useFetchFarcasterConversation,
   useFetchFarcasterInbox,
   useUpdateFarcasterGroupNameAndDescription,
+  useUpdateFarcasterGroupPhoto,
   useUpdateFarcasterSubscription,
   useStreamFarcasterDirectCastRead,
   useMarkFarcasterDirectCastUnread,