diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4f34b15..fff05a6 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,10 +1,11 @@
 FROM openjdk:8-jdk-alpine
 
-RUN apk update && apk upgrade && apk add netcat-openbsd
+RUN apk update && apk upgrade && apk add netcat-openbsd tzdata
 RUN mkdir -p /app
+ENV TZ Europe/Warsaw
+RUN echo "Europe/Warsaw" > /etc/timezone
 ADD server.jar /app
 ADD run.sh run.sh
 ADD version /app/version
 RUN chmod +x run.sh
-RUN sudo echo "Europe/Warsaw" > /etc/timezone
 CMD ./run.sh
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