diff --git a/tests/docker/dockerfiles/ubuntu.docker b/tests/docker/dockerfiles/ubuntu.docker
index eeb3b22bf2..43872417de 100644
--- a/tests/docker/dockerfiles/ubuntu.docker
+++ b/tests/docker/dockerfiles/ubuntu.docker
@@ -9,7 +9,7 @@
 # system won't pick up that it has changed.
 #
 
-FROM ubuntu:19.04
+FROM ubuntu:20.04
 ENV PACKAGES flex bison \
     ccache \
     clang \