diff --git a/types/jss/css.d.ts b/types/jss/css.d.ts
index 2da9aa04b4..2d5e89139a 100644
--- a/types/jss/css.d.ts
+++ b/types/jss/css.d.ts
@@ -1,6 +1,6 @@
 // These CSS typings adapted from TypeStyle: https://github.com/typestyle/typestyle
 
-import { Observable } from './observable';
+import { Observable } from 'indefinite-observable';
 import * as csstype from 'csstype';
 
 type Length = string | number;
diff --git a/types/jss/observable.d.ts b/types/jss/observable.d.ts
deleted file mode 100644
index ff6a5f0219..0000000000
--- a/types/jss/observable.d.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copied from https://github.com/cssinjs/jss/blob/6ed7963786d5ef899075e95f81efc9530342154f/src/types.js
-
-export type Observable<T> = {
-	subscribe(observerOrNext: ObserverOrNext<T>): Subscription
-}
-
-export type Observer<T> = {
-	next: NextChannel<T>
-}
-
-export type NextChannel<T> = (value: T) => void
-export type ObserverOrNext<T> = Observer<T> | NextChannel<T>
-
-export type Unsubscribe = () => void
-export type Subscription = {
-	unsubscribe: Unsubscribe
-}
diff --git a/types/jss/package.json b/types/jss/package.json
index f3be220fbc..59a8354d7d 100644
--- a/types/jss/package.json
+++ b/types/jss/package.json
@@ -1,6 +1,7 @@
 {
   "private": true,
   "dependencies": {
-    "csstype": "^2.0.0"
+    "csstype": "^2.0.0",
+    "indefinite-observable": "^1.0.1"
   }
 }