diff --git a/Dockerfile b/Dockerfile
index c8374fa8..84a436b2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,9 @@
 FROM ubuntu:latest
 LABEL maintainer="akshay.kumar758@webkul.com"
 
-ENV GOSU_VERSION 1.11
+ENV GOSU_VERSION=1.11
 
+RUN apt-get update && apt-get install -y adduser
 RUN adduser uvdesk -q --disabled-password --gecos ""
 
 # Install base supplimentary packages
@@ -78,4 +79,4 @@ RUN \
 WORKDIR /var/www
 
 ENTRYPOINT ["uvdesk-entrypoint.sh"]
-CMD ["/bin/bash"]
\ No newline at end of file
+CMD ["/bin/bash"]