diff --git a/src/features/compose/editor/index.tsx b/src/features/compose/editor/index.tsx
index 3bb217f6f..55ccc76e8 100644
--- a/src/features/compose/editor/index.tsx
+++ b/src/features/compose/editor/index.tsx
@@ -28,7 +28,7 @@ import StatePlugin from './plugins/state-plugin';
 
 const LINK_MATCHERS = [
   createLinkMatcherWithRegExp(
-    /((https?:\/\/(www\.)?)|(www\.))[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&//=]*)/,
+    /((https?:\/\/(www\.)?)|(www\.))[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_+.~#?&//=]*)/i,
     (text) => text.startsWith('http') ? text : `https://${text}`,
   ),
 ];