diff --git a/assets/javascripts/lib/discourse-markdown/allowlist.js.es6 b/assets/javascripts/lib/discourse-markdown/allowlist.js.es6
index d53edf5..89f2306 100644
--- a/assets/javascripts/lib/discourse-markdown/allowlist.js.es6
+++ b/assets/javascripts/lib/discourse-markdown/allowlist.js.es6
@@ -12,4 +12,10 @@ export function setup(helper) {
   helper.allowList(["div[class]"]);
   helper.allowList(["span[class]"]);
   helper.allowList(["font[color]"]);
+  helper.allowList(["info"]);
+  helper.allowList(["todo"]);
+  helper.allowList(["warn"]);
+  helper.allowList(["alert"]);
+  helper.allowList(["success"]);
+  helper.allowList(["msg"]);
 }