diff --git a/Makefile b/Makefile
index 932e6ba..e560c17 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ help:
 #.PHONY: build-push
 #build-push:
 #	docker login ghcr.io
-#	docker buildx build --push --platform linux/arm64/v8,linux/amd64 --tag ghcr.io/nextcloud/context_chat_backend:4.0.2 --tag ghcr.io/nextcloud/context_chat_backend:latest .
+#	docker buildx build --push --platform linux/arm64/v8,linux/amd64 --tag ghcr.io/nextcloud/context_chat_backend:4.0.3 --tag ghcr.io/nextcloud/context_chat_backend:latest .
 
 .PHONY: run
 run:
@@ -34,5 +34,5 @@ run:
 register:
 	docker exec master-nextcloud-1 sudo -u www-data php occ app_api:app:unregister context_chat_backend --silent || true
 	docker exec master-nextcloud-1 sudo -u www-data php occ app_api:app:register context_chat_backend manual_install --json-info \
-  "{\"id\":\"context_chat_backend\",\"name\":\"Context Chat Backend\",\"daemon_config_name\":\"manual_install\",\"version\":\"4.0.2\",\"secret\":\"12345\",\"port\":10034,\"scopes\":[],\"system\":0}" \
+  "{\"id\":\"context_chat_backend\",\"name\":\"Context Chat Backend\",\"daemon_config_name\":\"manual_install\",\"version\":\"4.0.3\",\"secret\":\"12345\",\"port\":10034,\"scopes\":[],\"system\":0}" \
   --force-scopes --wait-finish
diff --git a/README.md b/README.md
index d6a8751..559cb9c 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ If nextcloud is inside a container, `--add-host` option would be required by you
 **2. Register the app using the deploy daemon (be mindful of the port number and the app's version):**
 ```
 occ app_api:app:register context_chat_backend manual_install --json-info \
-"{\"appid\":\"context_chat_backend\",\"name\":\"Context Chat Backend\",\"daemon_config_name\":\"manual_install\",\"version\":\"4.0.2\",\"secret\":\"12345\",\"port\":10034,\"scopes\":[],\"system_app\":0}" \
+"{\"appid\":\"context_chat_backend\",\"name\":\"Context Chat Backend\",\"daemon_config_name\":\"manual_install\",\"version\":\"4.0.3\",\"secret\":\"12345\",\"port\":10034,\"scopes\":[],\"system_app\":0}" \
 --force-scopes --wait-finish
 ```
 The command to unregister is given below (force is used to also remove apps whose container has been removed)
@@ -226,7 +226,7 @@ sudo -u www-data php occ app_api:app:register \
     --json-info "{\"appid\":\"context_chat_backend\",\
                   \"name\":\"Context Chat Backend\",\
                   \"daemon_config_name\":\"manual_install\",\
-                  \"version\":\"4.0.2\",\
+                  \"version\":\"4.0.3\",\
                   \"secret\":\"12345\",\
                   \"port\":10034,\
                   \"scopes\":[],\
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 8559dd2..3352955 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -20,7 +20,7 @@ Install the given apps for Context Chat to work as desired **in the given order*
 
 Setup background job workers as described here: https://docs.nextcloud.com/server/latest/admin_manual/ai/overview.html#improve-ai-task-pickup-speed
 ]]></description>
-	<version>4.0.2</version>
+	<version>4.0.3</version>
 	<licence>agpl</licence>
 	<author mail="kyteinsky@gmail.com" homepage="https://github.com/kyteinsky">Anupam Kumar</author>
 	<namespace>Context Chat</namespace>
@@ -35,7 +35,7 @@ Setup background job workers as described here: https://docs.nextcloud.com/serve
 		<docker-install>
 			<registry>ghcr.io</registry>
 			<image>nextcloud/context_chat_backend</image>
-			<image-tag>4.0.2</image-tag>
+			<image-tag>4.0.3</image-tag>
 		</docker-install>
 	</external-app>
 </info>
diff --git a/changelog.md b/changelog.md
index 5847a1b..1e409d9 100644
--- a/changelog.md
+++ b/changelog.md
@@ -8,6 +8,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## 4.0.3 - 2025-01-11
+
+### Fixed
+- prevent two concurrent requests processing the same source (#130) @kyteinsky
+- shorten wait to 10 mins before failing in load sources for max requests allowed (#130) @kyteinsky
+
+
 ## 4.0.2 - 2025-01-09
 
 ### Fixed
diff --git a/example.env b/example.env
index 654847c..9af3d62 100644
--- a/example.env
+++ b/example.env
@@ -17,7 +17,7 @@ AA_VERSION=2.7.0
 APP_SECRET=12345
 APP_ID=context_chat_backend
 APP_DISPLAY_NAME=Context Chat Backend
-APP_VERSION=4.0.2
+APP_VERSION=4.0.3
 APP_HOST=0.0.0.0
 APP_PORT=10034
 APP_PERSISTENT_STORAGE=persistent_storage
diff --git a/pyproject.toml b/pyproject.toml
index 7d2c994..84655b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 [project]
 name = "context_chat_backend"
-version = "4.0.2"
+version = "4.0.3"
 requires-python = ">=3.11"
 authors = [
 	{ name = "Anupam Kumar", email = "kyteinsky@gmail.com" }