diff --git a/package.json b/package.json
index 0a5f089..27e11fd 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "typescript": "^4.2.3"
   },
   "peerDependencies": {
-    "rollup": "^2"
+    "rollup": "^2 || ^4.0.0"
   },
   "optionalDependencies": {
     "@babel/core": "^7",