diff --git a/docker/Dockerfile b/docker/Dockerfile
index 2352e05..98976bf 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,5 +1,5 @@
 # Dockerfile for Jupyter Notebook
-FROM openjdk:15-ea+8-jdk-buster
+FROM openjdk:15-ea-8-jdk-buster
 
 RUN apt-get update
 RUN apt-get install -y python3-pip