diff --git a/src/dump.ts b/src/dump.ts
index 0dd51c2..f4784a3 100644
--- a/src/dump.ts
+++ b/src/dump.ts
@@ -10,6 +10,7 @@ const ENDPOINT = env.BACKUP_S3_ENDPOINT;
 const REGION = env.BACKUP_S3_REGION;
 const BUCKET = env.BACKUP_S3_BUCKET;
 const DIR = env.BACKUP_DIR;
+const CONTAINER = env.BACKUP_CONTAINER;
 
 const CONFIG = {
 	localBackupDir: DIR,
@@ -42,7 +43,7 @@ const getMonthStr = (): string => {
 };
 
 async function dump(filePath: string) {
-	await $`pg_dump -d ${dbUri} -Fc -n public > ${filePath}`;
+	await $`docker exec -u postgres ${CONTAINER} pg_dump -d ${dbUri} -Fc -n public > ${filePath}`;
 }
 
 async function runBackup() {
diff --git a/src/env.ts b/src/env.ts
index af5d5e4..0016dbd 100644
--- a/src/env.ts
+++ b/src/env.ts
@@ -9,6 +9,7 @@ export const env = createEnv({
 		BACKUP_S3_ENDPOINT: z.string(),
 		BACKUP_S3_REGION: z.string(),
 		OSS_ACCESS_KEY_ID: z.string(),
-		OSS_ACCESS_KEY_SECRET: z.string(),
+        OSS_ACCESS_KEY_SECRET: z.string(),
+		BACKUP_CONTAINER: z.string(),
 	},
 });