diff --git a/deno.json b/deno.json
index 1463637..f57d2de 100644
--- a/deno.json
+++ b/deno.json
@@ -5,7 +5,7 @@
     "start": "deno run --allow-read --allow-write=data --allow-env --allow-net --unstable src/server.ts",
     "dev": "deno run --allow-read --allow-write=data --allow-env --allow-net --unstable --watch src/server.ts",
     "debug": "deno run --allow-read --allow-write=data --allow-env --allow-net --unstable --inspect src/server.ts",
-    "test": "deno test --allow-read --allow-write=data --allow-env --unstable src",
+    "test": "DB_PATH=\":memory:\" deno test --allow-read --allow-write=data --allow-env --unstable src",
     "check": "deno check --unstable src/server.ts"
   },
   "imports": {
diff --git a/src/config.ts b/src/config.ts
index 07e899d..461d986 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -45,6 +45,9 @@ const Conf = {
   get localDomain() {
     return Deno.env.get('LOCAL_DOMAIN') || 'http://localhost:8000';
   },
+  get dbPath() {
+    return Deno.env.get('DB_PATH') || 'data/db.sqlite3';
+  },
   get postCharLimit() {
     return Number(Deno.env.get('POST_CHAR_LIMIT') || 5000);
   },
diff --git a/src/db.ts b/src/db.ts
index 8f682d1..d03bf2f 100644
--- a/src/db.ts
+++ b/src/db.ts
@@ -2,6 +2,7 @@ import fs from 'node:fs/promises';
 import path from 'node:path';
 
 import { DenoSqliteDialect, FileMigrationProvider, Kysely, Migrator, Sqlite } from '@/deps.ts';
+import { Conf } from '@/config.ts';
 
 interface DittoDB {
   events: EventRow;
@@ -35,7 +36,7 @@ interface UserRow {
 
 const db = new Kysely<DittoDB>({
   dialect: new DenoSqliteDialect({
-    database: new Sqlite('data/db.sqlite3'),
+    database: new Sqlite(Conf.dbPath),
   }),
 });