diff --git a/.gitignore b/.gitignore
index 92b4428..dc0ab78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -162,4 +162,5 @@ cython_debug/
 
 .vscode
 configs/main.json
+mongo_entrypoint/.env
 tests/node_modules/
diff --git a/configs/test.json b/configs/test.json
index c3ed931..1eb437f 100644
--- a/configs/test.json
+++ b/configs/test.json
@@ -1,6 +1,6 @@
 {
     "database": {
-        "connect_url": "mongodb://admin:admin@db_test",
+        "connect_url": "mongodb://test:test@db_test/ELANDB",
         "name": "ELANDB"
     },
     "auth": {
diff --git a/docker-compose.yml b/docker-compose.yml
index a9b3dae..de32c3e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,13 +1,12 @@
 services:
   db:
     image: mongo
-    volumes:
-      - /var/lib/elan/mongodb_data:/data/db
-    environment:
-      - MONGO_INITDB_ROOT_USERNAME=admin
-      - MONGO_INITDB_ROOT_PASSWORD=admin
     ports:
       - "27017:27017"
+    env_file: "mongo_entrypoint/.env"
+    volumes:
+      - ./mongo_entrypoint:/docker-entrypoint-initdb.d
+      - /var/lib/elan/mongodb_data:/data/db
   api:
     build:
       context: ./
@@ -22,10 +21,12 @@ services:
   db_test:
     image: mongo
     environment:
-      - MONGO_INITDB_ROOT_USERNAME=admin
-      - MONGO_INITDB_ROOT_PASSWORD=admin
+      - MONGO_ELANDB_USERNAME=test
+      - MONGO_ELANDB_PASSWORD=test
     ports:
       - "42042:42042"
+    volumes:
+      - ./mongo_entrypoint:/docker-entrypoint-initdb.d
   api_test:
     build:
       context: ./
diff --git a/mongo_entrypoint/init.js b/mongo_entrypoint/init.js
new file mode 100644
index 0000000..db57a95
--- /dev/null
+++ b/mongo_entrypoint/init.js
@@ -0,0 +1,6 @@
+db = db.getSiblingDB("ELANDB");
+db.createUser({
+  user: process.env.MONGO_ELANDB_USERNAME,
+  pwd:  process.env.MONGO_ELANDB_PASSWORD,
+  roles: [{ role: "readWrite", db: "ELANDB" }]
+});
diff --git a/src/db/types/domain.py b/src/db/types/domain.py
index 0b8f518..33a74a7 100644
--- a/src/db/types/domain.py
+++ b/src/db/types/domain.py
@@ -1,12 +1,12 @@
-from typing import Literal
-from pydantic import Field
-
-from utils.schemas import BaseModel
-
-
-TargetType = Literal["user", "group", "contest"]
-
-class Entity(BaseModel):
-    id: str = Field(alias='_id')
-    target_type: TargetType
-    target_id: int
+from typing import Literal
+from pydantic import Field
+
+from utils.schemas import BaseModel
+
+
+TargetType = Literal["user", "group", "contest"]
+
+class Entity(BaseModel):
+    id: str = Field(alias='_id')
+    target_type: TargetType
+    target_id: int