diff --git a/Docker.autogen b/Docker.autogen
index 44ece76..5ce77dd 100644
--- a/Docker.autogen
+++ b/Docker.autogen
@@ -1,6 +1,6 @@
-FROM ubuntu:18.04
-RUN apt-get update && \
-	apt-get install -qy \
+FROM ubuntu:20.04
+RUN apt update && \
+	apt install -qy \
 		autoconf \
 		automake \
 		gettext \