diff --git a/docker/Dockerfile b/docker/Dockerfile
index eea8db13c..44ec135fa 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,8 @@
-FROM greyrocksoftware/javastandalone
+FROM greyrocksoftware/javastandalone7
+
+# Set the locale
+RUN locale-gen en_US.UTF-8
+ENV LANG='en_US.UTF-8' LANGUAGE='en_US:en' LC_ALL='en_US.UTF-8'
 
 RUN apt-get update