diff --git a/package.json b/package.json
index bcaeeec8..7f0e12ac 100644
--- a/package.json
+++ b/package.json
@@ -121,7 +121,7 @@
         "react-virtuoso": "^1.10.4",
         "redux": "^4.1.0",
         "revolt-api": "0.5.3-alpha.0-patch.0",
-        "revolt.js": "5.1.0-alpha.3",
+        "revolt.js": "5.1.0-alpha.4",
         "rimraf": "^3.0.2",
         "sass": "^1.35.1",
         "shade-blend-color": "^1.0.0",
diff --git a/src/components/navigation/left/common.ts b/src/components/navigation/left/common.ts
index 80d304ac..443f0e1c 100644
--- a/src/components/navigation/left/common.ts
+++ b/src/components/navigation/left/common.ts
@@ -1,7 +1,7 @@
 import { reaction } from "mobx";
 import { Channel } from "revolt.js/dist/maps/Channels";
 
-import { useLayoutEffect } from "preact/hooks";
+import { useLayoutEffect, useRef } from "preact/hooks";
 
 import { dispatch } from "../../../redux";
 import { Unreads } from "../../../redux/reducers/unreads";
@@ -12,6 +12,7 @@ type UnreadProps = {
 };
 
 export function useUnreads({ channel, unreads }: UnreadProps) {
+    const firstLoad = useRef(true);
     useLayoutEffect(() => {
         function checkUnread(target: Channel) {
             if (!target) return;
@@ -35,7 +36,8 @@ export function useUnreads({ channel, unreads }: UnreadProps) {
                         message,
                     });
 
-                    channel.ack(message);
+                    channel.ack(message, firstLoad.current);
+                    firstLoad.current = false;
                 }
             }
         }
diff --git a/src/lib/ContextMenus.tsx b/src/lib/ContextMenus.tsx
index f8feeeee..08e77733 100644
--- a/src/lib/ContextMenus.tsx
+++ b/src/lib/ContextMenus.tsx
@@ -170,18 +170,13 @@ function ContextMenus(props: Props) {
                         )
                             return;
 
-                        const message =
-                            typeof data.channel.last_message === "string"
-                                ? data.channel.last_message
-                                : data.channel.last_message!._id;
-
                         dispatch({
                             type: "UNREADS_MARK_READ",
                             channel: data.channel._id,
-                            message,
+                            message: data.channel.last_message_id!,
                         });
 
-                        data.channel.ack(message);
+                        data.channel.ack(undefined, true);
                     }
                     break;
                 case "mark_server_as_read":
diff --git a/yarn.lock b/yarn.lock
index c17eb543..6a3e59bd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3659,10 +3659,10 @@ revolt-api@0.5.3-alpha.0-patch.0:
   resolved "https://registry.yarnpkg.com/revolt-api/-/revolt-api-0.5.3-alpha.0-patch.0.tgz#158556832843bb06cb06a4df50ffca24ab64be3b"
   integrity sha512-76l+kGyrUy6uGMSIziyAHE27r9gD97OEh5gSzb2OJRsQM55TN0NurAsfFIEiB9hUzDDlwsXchtJiqdS4UVAwQw==
 
-revolt.js@5.1.0-alpha.3:
-  version "5.1.0-alpha.3"
-  resolved "https://registry.yarnpkg.com/revolt.js/-/revolt.js-5.1.0-alpha.3.tgz#67ecc2165a0a3b87d329f92857133eaec7607b47"
-  integrity sha512-dDvNDtbc8tSyzJLLSCzQ62yof5SdFWllX5jFLY+xh+e3l6cgzIhQanf9go/32HycmG9pSTbDkXGRes+ByBxA1g==
+revolt.js@5.1.0-alpha.4:
+  version "5.1.0-alpha.4"
+  resolved "https://registry.yarnpkg.com/revolt.js/-/revolt.js-5.1.0-alpha.4.tgz#a42ea910352dd475adfed74e18f63b046cc152d4"
+  integrity sha512-Hxeu748qBOUkYV5oENMqpzZndJizMLwEWl9w/ahxLaxQrGVM1R1P1eKc5VU1h+4MfXbWe+Q5TS0wFZAM5Um6EA==
   dependencies:
     axios "^0.19.2"
     eventemitter3 "^4.0.7"