diff --git a/universal-runtime/Dockerfile b/universal-runtime/Dockerfile
index 89087d2..6ccd6be 100644
--- a/universal-runtime/Dockerfile
+++ b/universal-runtime/Dockerfile
@@ -1,6 +1,9 @@
 FROM debian:bookworm-slim
 
-ENV DEBIAN_FRONTEND=noninteractive
+ENV DEBIAN_FRONTEND=noninteractive \
+    LANG=ru_RU.UTF-8 \
+    LC_ALL=ru_RU.UTF-8 \
+    LANGUAGE=ru_RU:ru
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     tini \
@@ -17,6 +20,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     x11-utils \
     fonts-dejavu-core \
     python3-cryptography \
+    locales \
+    && sed -i 's/# ru_RU.UTF-8/ru_RU.UTF-8/' /etc/locale.gen \
+    && locale-gen \
     && rm -rf /var/lib/apt/lists/*
 
 COPY entrypoint.sh /entrypoint.sh