diff --git a/package.json b/package.json
index 9de635281..b139d4151 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,6 @@
     "watchify": "^3.2.1"
   },
   "optionalDependencies": {
-    "olm": "https://matrix.org/packages/npm/olm/olm-2.1.0.tgz"
+    "olm": "https://matrix.org/packages/npm/olm/olm-2.2.1.tgz"
   }
 }