From 4ddd73c33ecba817d5c7d6fe00e91cec3d880ca1 Mon Sep 17 00:00:00 2001
From: Lex Berezhny <lex@damoti.com>
Date: Fri, 17 Dec 2021 14:59:29 -0500
Subject: [PATCH] upgrade ubuntu

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

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4105973f6..7acdd8db4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -97,7 +97,7 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-16.04
+          - ubuntu-18.04
           - macos-latest
           - windows-latest
     runs-on: ${{ matrix.os }}