diff --git a/consts/envs.ts b/consts/envs.ts
index cb45134..c4f76a2 100644
--- a/consts/envs.ts
+++ b/consts/envs.ts
@@ -17,6 +17,7 @@ export const MODEL_KNOWLEDGE_CUTOFF = "MODEL_KNOWLEDGE_CUTOFF";
 // this env names for embedding
 export const EMBEDDING_POVIDER = "EMBEDDING_POVIDER";
 export const EMBEDDING_MODELS = "EMBEDDING_MODELS";
+export const EMBEDDING_DIMENSION = "EMBEDDING_DIMENSION";
 
 // the env var names of anthropic
 export const ANTHROPIC_API_URL = "ANTHROPIC_API_URL";
@@ -43,3 +44,5 @@ export const MODELS_MAPPING = "MODELS_MAPPING";
 export const GOOGLE_API_URL = "GOOGLE_API_URL";
 export const GOOGLE_API_KEY = "GOOGLE_API_KEY";
 export const GOOGLE_API_VERSION = "GOOGLE_API_VERSION";
+
+export const PGVECTOR_URL = "PGVECTOR_URL";
diff --git a/providers/vector_db/pgvector.ts b/providers/vector_db/pgvector.ts
index 55262a7..e95a5f0 100644
--- a/providers/vector_db/pgvector.ts
+++ b/providers/vector_db/pgvector.ts
@@ -1,11 +1,18 @@
 import { Pool, QueryArguments } from "$postgres/mod.ts";
 import * as log from "$std/log/mod.ts";
-
-const databaseUrl = Deno.env.get("PGVECTOR_URL")!;
-const embeddingDimension = Deno.env.get("EMBEDDING_DIMENSION")!;
+import { getEnv } from "$/utils/env.ts";
+import { EMBEDDING_DIMENSION, PGVECTOR_URL } from "$/consts/envs.ts";
 
 export default class Client {
-  static pool = new Pool(databaseUrl, 3, true);
+  static pool = new Pool(
+    getEnv(
+      PGVECTOR_URL,
+      "postgres://postgres:postgres@localhost:5432/assistant",
+    ),
+    5,
+    true,
+  );
+  static embeddingDimension = getEnv(EMBEDDING_DIMENSION, "1536");
 
   public static async create(vectorStoreId: string) {
     const sql = `
@@ -14,7 +21,7 @@ export default class Client {
           file_id TEXT NOT NULL,
           file_name TEXT NOT NULL,
           content TEXT NOT NULL,
-          embedding VECTOR(${embeddingDimension})
+          embedding VECTOR(${this.embeddingDimension})
         )
       `;
     await this.query(sql);