diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index d1050d4727..9ffd0aa025 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -671,7 +671,7 @@ export type Channels = {
     };
     hashtag: {
         params: {
-            q?: string;
+            q: string[][];
         };
         events: {
             note: (payload: Note) => void;
diff --git a/packages/misskey-js/src/streaming.types.ts b/packages/misskey-js/src/streaming.types.ts
index 4447a2e8fc..99d8a56e75 100644
--- a/packages/misskey-js/src/streaming.types.ts
+++ b/packages/misskey-js/src/streaming.types.ts
@@ -124,7 +124,7 @@ export type Channels = {
 	};
 	hashtag: {
 		params: {
-			q?: string;
+			q: string[][];
 		};
 		events: {
 			note: (payload: Note) => void;