diff --git a/docker-compose-arm/Dockerfile b/docker-compose-arm/Dockerfile
index 8aff144..93690d0 100644
--- a/docker-compose-arm/Dockerfile
+++ b/docker-compose-arm/Dockerfile
@@ -5,8 +5,8 @@
 FROM arm32v7/debian:buster
 MAINTAINER EasyPi Software Foundation
 
-ENV DOCKER_COMPOSE_VERSION 1.28.0
-ENV PYINSTALLER_VERSION 4.1
+ENV DOCKER_COMPOSE_VERSION=1.28.4
+ENV PYINSTALLER_VERSION=4.1
 
 RUN set -xe \
     && apt-get update \