diff --git a/nix/docker/demo-version.json b/nix/docker/demo-version.json
index dfcc3af19..ff9958555 100644
--- a/nix/docker/demo-version.json
+++ b/nix/docker/demo-version.json
@@ -1,3 +1,3 @@
 {
-  "version": "0.3.0"
+  "version": "0.4.0"
 }