diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..157aab4
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,4 @@
+# MinIO credentials (used in docker-compose.yml)
+# Must be at least 3 characters for MINIO_ROOT_USER and 8 characters for MINIO_ROOT_PASSWORD
+MINIO_ROOT_USER=beetask123
+MINIO_ROOT_PASSWORD=beetaskpassword
diff --git a/docker-compose.yml b/docker-compose.yml
index a38573c..52f6024 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -27,8 +27,8 @@ services:
     command: server /data --console-address ":9001"
 
     environment:
-      MINIO_ROOT_USER: minioadmin
-      MINIO_ROOT_PASSWORD: minioadmin
+      MINIO_ROOT_USER: ${MINIO_ROOT_USER:-beetask123}
+      MINIO_ROOT_PASSWORD: ${MINIO_ROOT_PASSWORD:-beetaskpassword}
 
     ports:
       - "9000:9000"
@@ -42,10 +42,13 @@ services:
     depends_on:
       - minio
     restart: on-failure
+    environment:
+      MINIO_ROOT_USER: ${MINIO_ROOT_USER:-beetask123}
+      MINIO_ROOT_PASSWORD: ${MINIO_ROOT_PASSWORD:-beetaskpassword}
     entrypoint: >
       /bin/sh -c "
       sleep 3 &&
-      mc alias set local http://minio:9000 minioadmin minioadmin &&
+      mc alias set local http://minio:9000 $$MINIO_ROOT_USER $$MINIO_ROOT_PASSWORD &&
       mc mb --ignore-existing local/avatars &&
       mc anonymous set download local/avatars
       "