diff --git a/outline/docker-compose.yaml b/outline/docker-compose.yaml
index 7def4cf..d619966 100644
--- a/outline/docker-compose.yaml
+++ b/outline/docker-compose.yaml
@@ -55,6 +55,7 @@ services:
       - REDIS_URL=redis://outline_redis:6379
       - URL=${WIKI_URL}
       - PORT=443
+      - DEFAULT_LANGUAGE=ru_RU
       - AWS_ACCESS_KEY_ID=minio
       - AWS_REGION=us-east-1
       - AWS_SECRET_ACCESS_KEY=${MINIO_ROOT_PASSWORD}