diff --git a/Makefile b/Makefile
index ae39694..2460362 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,9 @@ BUILD_DIR := build
 BUILD_FROM_SOURCE ?= false
 TARGET_LIBRARY ?= all
 
+RAG_SERVICE_VERSION ?= 0.0.4
+RAG_SERVICE_IMAGE := quay.io/yetoneful/avante-rag-service:$(RAG_SERVICE_VERSION)
+
 all: luajit
 
 define make_definitions
@@ -103,5 +106,5 @@ lua-typecheck:
 
 .PHONY: build-image
 build-image:
-	docker build -t quay.io/yetoneful/avante-rag-service:0.0.3 -f py/rag-service/Dockerfile py/rag-service
-	docker push quay.io/yetoneful/avante-rag-service:0.0.3
+	docker build -t $(RAG_SERVICE_IMAGE) -f py/rag-service/Dockerfile py/rag-service
+	docker push $(RAG_SERVICE_IMAGE)
diff --git a/lua/avante/rag_service.lua b/lua/avante/rag_service.lua
index 125a255..9162568 100644
--- a/lua/avante/rag_service.lua
+++ b/lua/avante/rag_service.lua
@@ -6,7 +6,7 @@ local M = {}
 
 local container_name = "avante-rag-service"
 
-function M.get_rag_service_image() return "quay.io/yetoneful/avante-rag-service:0.0.3" end
+function M.get_rag_service_image() return "quay.io/yetoneful/avante-rag-service:0.0.4" end
 
 function M.get_rag_service_port() return 20250 end
 
diff --git a/py/rag-service/src/main.py b/py/rag-service/src/main.py
index de2d814..fa59d60 100644
--- a/py/rag-service/src/main.py
+++ b/py/rag-service/src/main.py
@@ -769,10 +769,14 @@ async def add_resource(request: ResourceRequest, background_tasks: BackgroundTas
     if is_local_uri(request.uri):
         directory = uri_to_path(request.uri)
         if not directory.exists():
-            raise HTTPException(status_code=404, detail="Directory not found")
+            raise HTTPException(status_code=404, detail=f"Directory not found: {directory}")
 
         if not directory.is_dir():
-            raise HTTPException(status_code=400, detail="Not a directory")
+            raise HTTPException(status_code=400, detail=f"{directory} is not a directory")
+
+        git_directory = directory / ".git"
+        if not git_directory.exists() or not git_directory.is_dir():
+            raise HTTPException(status_code=400, detail=f"{git_directory} ia not a git repository")
 
         # Create observer
         event_handler = FileSystemHandler(directory=directory)