diff --git a/.travis.yml b/.travis.yml
index d485e22..214c9a0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@
   only:
     - main
 language: cpp
-dist: focal
+dist: bionic
 matrix:
   include:
     - name: "Linux / clang / x86_64"