From 7e933727504c3819a095be20446d2fd52c4e42d7 Mon Sep 17 00:00:00 2001
From: Brandt Bucher <brandt@python.org>
Date: Tue, 2 Mar 2021 21:57:16 -0800
Subject: [PATCH] Pin test runner to Ubuntu 18 to un-break CI

---
 .github/workflows/build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c674c5d606c546..ef54865ed964c7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -127,7 +127,7 @@ jobs:
 
   build_ubuntu:
     name: 'Ubuntu'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env: