diff --git a/rag-service/src/main/resources/application.properties b/rag-service/src/main/resources/application.properties
index 1d4a467..d4a56a8 100644
--- a/rag-service/src/main/resources/application.properties
+++ b/rag-service/src/main/resources/application.properties
@@ -5,6 +5,7 @@ spring.ai.openai.base-url=${SPRING_AI_OPENAI_BASE_URL:https://api.groq.com/opena
 spring.ai.openai.api-key=${SPRING_AI_OPENAI_API_KEY:}
 spring.ai.openai.chat.model=${SPRING_AI_OPENAI_CHAT_MODEL:llama-3.3-70b-versatile}
 spring.jpa.hibernate.ddl-auto=update
+spring.ai.vectorstore.pgvector.dimensions=384
 
 # --- Embedding model: local ONNX (Groq has no embedding API) ---
 spring.ai.openai.embedding.enabled=false