diff --git a/package-lock.json b/package-lock.json
index a293701..f288987 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@tastytrade/api",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@tastytrade/api",
-      "version": "3.1.0",
+      "version": "4.0.0",
       "license": "MIT",
       "dependencies": {
         "@types/lodash": "^4.14.182",
diff --git a/package.json b/package.json
index b276e45..1892f73 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tastytrade/api",
-  "version": "3.1.0",
+  "version": "4.0.0",
   "type": "module",
   "module": "dist/tastytrade-api.js",
   "types": "dist/tastytrade-api.d.ts",