diff --git a/package-lock.json b/package-lock.json
index 680a5c3..e91346c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "rollup-cli": "^1.0.9",
         "rollup-plugin-terser": "^5.3.1",
         "standard": "^14.3.4",
-        "typescript": "^3.9.10",
+        "typescript": "^4.4.4",
         "yjs": "^13.5.20"
       },
       "engines": {
@@ -3581,9 +3581,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "3.9.10",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
-      "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+      "version": "4.7.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.4.tgz",
+      "integrity": "sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -6581,9 +6581,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.10",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.10.tgz",
-      "integrity": "sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==",
+      "version": "4.7.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.4.tgz",
+      "integrity": "sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==",
       "dev": true
     },
     "unbox-primitive": {
diff --git a/package.json b/package.json
index 095e754..83a648c 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "rollup-cli": "^1.0.9",
     "rollup-plugin-terser": "^5.3.1",
     "standard": "^14.3.4",
-    "typescript": "^3.9.10",
+    "typescript": "^4.4.4",
     "yjs": "^13.5.20"
   },
   "peerDependenies": {
diff --git a/src/y-webrtc.js b/src/y-webrtc.js
index 8845a97..c587584 100644
--- a/src/y-webrtc.js
+++ b/src/y-webrtc.js
@@ -544,12 +544,12 @@ export class WebrtcProvider extends Observable {
    * @param {string} roomName
    * @param {Y.Doc} doc
    * @param {Object} [opts]
-   * @param {Array<string>?} [opts.signaling]
-   * @param {string?} [opts.password]
-   * @param {awarenessProtocol.Awareness?} [opts.awareness]
-   * @param {number?} [opts.maxConns]
-   * @param {boolean?} [opts.filterBcConns]
-   * @param {any?} [opts.peerOpts]
+   * @param {Array<string>} [opts.signaling]
+   * @param {string} [opts.password]
+   * @param {awarenessProtocol.Awareness} [opts.awareness]
+   * @param {number} [opts.maxConns]
+   * @param {boolean} [opts.filterBcConns]
+   * @param {any} [opts.peerOpts]
    */
   constructor (
     roomName,