diff --git a/.travis.yml b/.travis.yml
index d1e4e0e..7e86f08 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -85,7 +85,7 @@ before_install:
   - uname -a
 
   # Use an artful container - gives us access to latest compilers.
-  - docker run -d --name ubuntu-test-container -v $(pwd):/travis ubuntu:bionic tail -f /dev/null
+  - docker run -d --name ubuntu-test-container -v $(pwd):/travis ubuntu:focal tail -f /dev/null
   - docker ps