diff --git a/tests/memlimit/dockerfile/Dockerfile b/tests/memlimit/dockerfile/Dockerfile
index 0cb02777..9513e5e4 100644
--- a/tests/memlimit/dockerfile/Dockerfile
+++ b/tests/memlimit/dockerfile/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:artful
+FROM ubuntu:bionic
 
 RUN apt-get update && apt-get install --yes python3