diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 8b47e7657c10d2a5d76acf12be3ba73312281a82..00bb74e1a058b86edbe019704c710b9224f0c691 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,8 +1,7 @@
 FROM julia:1.6
 
-RUN echo 'deb http://deb.debian.org/debian buster-backports main' > /etc/apt/sources.list.d/buster-backports.list
 RUN apt-get update
-RUN apt-get install -y cmake/buster-backports
+RUN apt-get install -y cmake
 RUN apt-get install -y git
 RUN apt-get install -y python3-pip
 RUN apt-get install -y curl