diff --git a/lib/shared/markdown.js b/lib/shared/markdown.js
--- a/lib/shared/markdown.js
+++ b/lib/shared/markdown.js
@@ -251,6 +251,11 @@
 }
 
 const spoilerRegex: RegExp = /^\|\|([^\n]+?)\|\|/g;
+const replaceSpoilerRegex: RegExp = /\|\|(.+?)\|\|/g;
+const spoilerReplacement: string = '⬛⬛⬛';
+
+const stripSpoilersFromNotifications = (text: string): string =>
+  text.replace(replaceSpoilerRegex, spoilerReplacement);
 
 export {
   paragraphRegex,
@@ -272,4 +277,5 @@
   matchList,
   parseList,
   matchMentions,
+  stripSpoilersFromNotifications,
 };
diff --git a/lib/shared/messages/text-message-spec.js b/lib/shared/messages/text-message-spec.js
--- a/lib/shared/messages/text-message-spec.js
+++ b/lib/shared/messages/text-message-spec.js
@@ -16,7 +16,11 @@
 import type { NotifTexts } from '../../types/notif-types';
 import type { ThreadInfo } from '../../types/thread-types';
 import type { RelativeUserInfo } from '../../types/user-types';
-import { type ASTNode, type SingleASTNode } from '../markdown';
+import {
+  type ASTNode,
+  type SingleASTNode,
+  stripSpoilersFromNotifications,
+} from '../markdown';
 import { threadIsGroupChat } from '../thread-utils';
 import { stringForUser } from '../user-utils';
 import type {
@@ -168,18 +172,21 @@
       messageInfo.type === messageTypes.TEXT,
       'messageInfo should be messageTypes.TEXT!',
     );
+    const notificationTextWithoutSpoilers = stripSpoilersFromNotifications(
+      messageInfo.text,
+    );
     if (!threadInfo.name && !threadIsGroupChat(threadInfo)) {
       return {
-        merged: `${threadInfo.uiName}: ${messageInfo.text}`,
-        body: messageInfo.text,
+        merged: `${threadInfo.uiName}: ${notificationTextWithoutSpoilers}`,
+        body: notificationTextWithoutSpoilers,
         title: threadInfo.uiName,
       };
     } else {
       const userString = stringForUser(messageInfo.creator);
       const threadName = params.notifThreadName(threadInfo);
       return {
-        merged: `${userString} to ${threadName}: ${messageInfo.text}`,
-        body: messageInfo.text,
+        merged: `${userString} to ${threadName}: ${notificationTextWithoutSpoilers}`,
+        body: notificationTextWithoutSpoilers,
         title: threadInfo.uiName,
         prefix: `${userString}:`,
       };