diff --git a/package-lock.json b/package-lock.json
index 565583f97..a1ca792b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sip.js",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "sip.js",
-      "version": "0.21.0",
+      "version": "0.21.1",
       "license": "MIT",
       "devDependencies": {
         "@microsoft/api-documenter": "^7.19.22",
diff --git a/package.json b/package.json
index 62aad270a..2e75aa900 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "sip.js",
   "title": "SIP.js",
   "description": "A SIP library for JavaScript",
-  "version": "0.21.0",
+  "version": "0.21.1",
   "license": "MIT",
   "main": "./lib/index.js",
   "files": [
diff --git a/src/version.ts b/src/version.ts
index f33d16478..f57edfb48 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const LIBRARY_VERSION = "0.21.0";
+export const LIBRARY_VERSION = "0.21.1";