diff --git a/jupyterlab/package.json b/jupyterlab/package.json
index 5bf567ff..a51af257 100644
--- a/jupyterlab/package.json
+++ b/jupyterlab/package.json
@@ -1,6 +1,6 @@
 {
     "name": "jupyterlab-optuna",
-    "version": "0.2.2-beta.3",
+    "version": "0.2.2",
     "description": "A JupyterLab extension for Optuna",
     "keywords": [
         "jupyter",