diff --git a/Dockerfile.build.macosx b/Dockerfile.build.macosx
index f8109e6..d53f960 100644
--- a/Dockerfile.build.macosx
+++ b/Dockerfile.build.macosx
@@ -1,4 +1,4 @@
-FROM ubuntu:22.04
+FROM ubuntu:20.04
 
 # Work around for 16.04 host which has old docker version
 # RUN sed -i -e 's/ { / /' -e 's/ };//' /etc/apt/apt.conf.d/docker-clean