diff --git a/retrolab/app.py b/retrolab/app.py
index 6d276650d..f287742b6 100644
--- a/retrolab/app.py
+++ b/retrolab/app.py
@@ -161,6 +161,7 @@ class RetroApp(NBClassicConfigShimMixin, LabServerApp):
     name = "retro"
     app_name = "RetroLab"
     description = "RetroLab - A JupyterLab Distribution with a retro look and feel"
+    version = version
     app_version = version
     extension_url = "/retro"
     default_url = "/retro/tree"