diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 595fbdc..f43c4e7 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "ds-chat"
-version = "1.1.0"
+version = "2026.9.3"
 description = "DS Chat backend service"
 license = { text = "AGPL-3.0-or-later" }
 requires-python = ">=3.11"
diff --git a/frontend/package.json b/frontend/package.json
index 0108eb3..83a77cd 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "1.1.0",
+  "version": "2026.9.3",
   "license": "AGPL-3.0-or-later",
   "type": "module",
   "scripts": {