diff --git a/package.json b/package.json
index 8b3e381..8dc9a71 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
   },
   "dependencies": {
     "deep-equal": "^1.0.1",
-    "is-observable": "^0.2.0",
+    "is-observable": "^1.0.0",
     "rxjs": "^5.0.0-beta.10",
     "rxjs-es": "^5.0.0-beta.10",
     "symbol-observable": "^1.0.1"