diff --git a/3rdparty/docker/bootstrap/Dockerfile b/3rdparty/docker/bootstrap/Dockerfile
index e5d2d43c24..13b232a65d 100644
--- a/3rdparty/docker/bootstrap/Dockerfile
+++ b/3rdparty/docker/bootstrap/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian
+FROM debian:buster-slim
 
 ENV DEBIAN_FRONTEND="noninteractive"
 
diff --git a/3rdparty/docker/cross-compiler/Dockerfile b/3rdparty/docker/cross-compiler/Dockerfile
index 932d984c29..5cff79248e 100644
--- a/3rdparty/docker/cross-compiler/Dockerfile
+++ b/3rdparty/docker/cross-compiler/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:17.04
+FROM debian:buster-slim
 
 # docker build --no-cache --tag docker.io/haiku/cross-compiler:x86_64 .
 # docker push docker.io/haiku/cross-compiler:x86_64