diff --git a/package-lock.json b/package-lock.json
index 828319175f..59d3dc6e84 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@google/gemini-cli",
-      "version": "0.1.21",
+      "version": "0.3.0-nightly.20250823.1a89d185",
       "workspaces": [
         "packages/*"
       ],
@@ -13165,7 +13165,7 @@
     },
     "packages/cli": {
       "name": "@google/gemini-cli",
-      "version": "0.1.21",
+      "version": "0.3.0-nightly.20250823.1a89d185",
       "dependencies": {
         "@google/gemini-cli-core": "file:../core",
         "@google/genai": "1.13.0",
@@ -13348,7 +13348,7 @@
     },
     "packages/core": {
       "name": "@google/gemini-cli-core",
-      "version": "0.1.21",
+      "version": "0.3.0-nightly.20250823.1a89d185",
       "dependencies": {
         "@google/genai": "1.13.0",
         "@modelcontextprotocol/sdk": "^1.11.0",
@@ -13467,7 +13467,7 @@
     },
     "packages/test-utils": {
       "name": "@google/gemini-cli-test-utils",
-      "version": "0.1.21",
+      "version": "0.3.0-nightly.20250823.1a89d185",
       "license": "Apache-2.0",
       "devDependencies": {
         "typescript": "^5.3.3"
@@ -13478,7 +13478,7 @@
     },
     "packages/vscode-ide-companion": {
       "name": "gemini-cli-vscode-ide-companion",
-      "version": "0.1.21",
+      "version": "0.3.0-nightly.20250823.1a89d185",
       "license": "LICENSE",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.15.1",
diff --git a/package.json b/package.json
index 92386a604a..3d1fe9d730 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "engines": {
     "node": ">=20.0.0"
   },
@@ -14,7 +14,7 @@
     "url": "git+https://github.com/google-gemini/gemini-cli.git"
   },
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.1.21"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.3.0-nightly.20250823.1a89d185"
   },
   "scripts": {
     "start": "node scripts/start.js",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index a460920e03..f279d97f24 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "description": "Gemini CLI",
   "repository": {
     "type": "git",
@@ -25,7 +25,7 @@
     "dist"
   ],
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.1.21"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.3.0-nightly.20250823.1a89d185"
   },
   "dependencies": {
     "@google/gemini-cli-core": "file:../core",
diff --git a/packages/core/package.json b/packages/core/package.json
index a694924cb8..1f53fc0c81 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-core",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "description": "Gemini CLI Core",
   "repository": {
     "type": "git",
diff --git a/packages/test-utils/package.json b/packages/test-utils/package.json
index 51359c5cc3..f36d2a7400 100644
--- a/packages/test-utils/package.json
+++ b/packages/test-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-test-utils",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "private": true,
   "main": "src/index.ts",
   "license": "Apache-2.0",
diff --git a/packages/vscode-ide-companion/package.json b/packages/vscode-ide-companion/package.json
index de2e4834fb..a152b16d03 100644
--- a/packages/vscode-ide-companion/package.json
+++ b/packages/vscode-ide-companion/package.json
@@ -2,7 +2,7 @@
   "name": "gemini-cli-vscode-ide-companion",
   "displayName": "Gemini CLI Companion",
   "description": "Enable Gemini CLI with direct access to your IDE workspace.",
-  "version": "0.1.21",
+  "version": "0.3.0-nightly.20250823.1a89d185",
   "publisher": "google",
   "icon": "assets/icon.png",
   "repository": {