diff --git a/charts/open-webui/values.yaml b/charts/open-webui/values.yaml
index 8632ee5..a443c45 100644
--- a/charts/open-webui/values.yaml
+++ b/charts/open-webui/values.yaml
@@ -112,7 +112,7 @@ rag:
   enabled: false
   # -- Vector database configuration
   # ref: https://docs.openwebui.com/getting-started/env-configuration#vector_db
-  vectorDB: {}
+  vectorDB: ""
   # -- Embedding engine to use for RAG with env `RAG_EMBEDDING_ENGINE`: ""(empty), "ollama", "openai"
   # ref: https://docs.openwebui.com/getting-started/env-configuration#rag_embedding_engine
   embeddingEngine: {}