diff --git a/package-lock.json b/package-lock.json
index 4e5ba0a..73e6dc2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@doist/todoist-api-typescript",
-    "version": "3.0.3",
+    "version": "4.0.0-alpha.1",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "@doist/todoist-api-typescript",
-            "version": "3.0.2",
+            "version": "4.0.0-alpha.1",
             "license": "MIT",
             "dependencies": {
                 "axios": "^1.0.0",
@@ -40,7 +40,7 @@
                 "typescript": "4.9.5"
             },
             "peerDependencies": {
-                "type-fest": "^4.5.0"
+                "type-fest": "^4.12.0"
             }
         },
         "node_modules/@babel/code-frame": {
diff --git a/package.json b/package.json
index e11d9a4..206e4c4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@doist/todoist-api-typescript",
-    "version": "3.0.3",
+    "version": "4.0.0-alpha.1",
     "description": "A typescript wrapper for the Todoist REST API.",
     "author": "Doist developers",
     "repository": "git@github.com:doist/todoist-api-typescript.git",
@@ -72,4 +72,4 @@
         "!dist/**/*.test.js",
         "!dist/**/*.test.d.ts"
     ]
-}
+}
\ No newline at end of file