diff --git a/spark/test/Dockerfile b/spark/test/Dockerfile
index e4f122d..2ce2a71 100644
--- a/spark/test/Dockerfile
+++ b/spark/test/Dockerfile
@@ -13,11 +13,11 @@ ENV PATH $PATH:$JAVA_HOME/bin
 
 ENV SPARK_VER 2.2.1
 
-RUN wget https://archive.apache.org/dist/spark/spark-$SPARK_ENV/spark-$SPARK_ENV-bin-without-hadoop.tgz && \
-	tar -xvf spark-$SPARK_ENV-bin-without-hadoop.tgz -C /usr/local && \
-	rm spark-$SPARK_ENV-bin-without-hadoop.tgz
+RUN wget https://archive.apache.org/dist/spark/spark-$SPARK_VER/spark-$SPARK_VER-bin-without-hadoop.tgz && \
+	tar -xvf spark-$SPARK_VER-bin-without-hadoop.tgz -C /usr/local && \
+	rm spark-$SPARK_VER-bin-without-hadoop.tgz
 
-RUN ln -s /usr/local/spark-$SPARK_ENV-bin-without-hadoop /usr/local/spark
+RUN ln -s /usr/local/spark-$SPARK_VER-bin-without-hadoop /usr/local/spark
 
 ENV SPARK_HOME /usr/local/spark
 
diff --git a/spark/test/README.md b/spark/test/README.md
index d8c6eeb..56c9a9a 100644
--- a/spark/test/README.md
+++ b/spark/test/README.md
@@ -2,8 +2,6 @@
 
 ## Create a spark cluster in swarm mode
 
-`--hostname` needs 1.13 or higher
-
 ```bash
 docker service create \
 --name spark-master \