diff --git a/.env.example b/.env.example
index 0720b9a..af0270b 100644
--- a/.env.example
+++ b/.env.example
@@ -7,7 +7,7 @@ TZ=UTC
 # Copy this file to .env and customize
 
 # Image version to run (set by build.sh, or use 'latest')
-JAMA_VERSION=0.3.9
+JAMA_VERSION=0.4.0
 
 # Default admin credentials (used on FIRST RUN only)
 ADMIN_NAME=Admin User
diff --git a/backend/package.json b/backend/package.json
index 7165353..b7efe01 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jama-backend",
-  "version": "0.3.9",
+  "version": "0.4.0",
   "description": "TeamChat backend server",
   "main": "src/index.js",
   "scripts": {
diff --git a/build.sh b/build.sh
index a324f38..b3d46f4 100644
--- a/build.sh
+++ b/build.sh
@@ -13,7 +13,7 @@
 # ─────────────────────────────────────────────────────────────
 set -euo pipefail
 
-VERSION="${1:-0.3.9}"
+VERSION="${1:-0.4.0}"
 ACTION="${2:-}"
 REGISTRY="${REGISTRY:-}"
 IMAGE_NAME="jama"
diff --git a/frontend/package.json b/frontend/package.json
index 45af001..7d997a2 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jama-frontend",
-  "version": "0.3.9",
+  "version": "0.4.0",
   "private": true,
   "scripts": {
     "dev": "vite",
diff --git a/frontend/public/icons/icon-192-maskable.png b/frontend/public/icons/icon-192-maskable.png
new file mode 100644
index 0000000..c62db49
Binary files /dev/null and b/frontend/public/icons/icon-192-maskable.png differ
diff --git a/frontend/public/icons/icon-512-maskable.png b/frontend/public/icons/icon-512-maskable.png
new file mode 100644
index 0000000..f8710bd
Binary files /dev/null and b/frontend/public/icons/icon-512-maskable.png differ
diff --git a/frontend/public/manifest.json b/frontend/public/manifest.json
index ce5971f..0b70959 100644
--- a/frontend/public/manifest.json
+++ b/frontend/public/manifest.json
@@ -16,7 +16,7 @@
       "purpose": "any"
     },
     {
-      "src": "/icons/icon-192.png",
+      "src": "/icons/icon-192-maskable.png",
       "sizes": "192x192",
       "type": "image/png",
       "purpose": "maskable"
@@ -28,7 +28,7 @@
       "purpose": "any"
     },
     {
-      "src": "/icons/icon-512.png",
+      "src": "/icons/icon-512-maskable.png",
       "sizes": "512x512",
       "type": "image/png",
       "purpose": "maskable"