From 1b3a9073948c1c0c492367492fb159bfab6b8139 Mon Sep 17 00:00:00 2001
From: Andrey Semashev <andrey.semashev@gmail.com>
Date: Sun, 14 Aug 2022 17:51:54 +0300
Subject: [PATCH] Switched gcc-9 to ubuntu-20.04 GHA CI image.

---
 .github/workflows/ci.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b9beae4..ea65f70 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -90,8 +90,7 @@ jobs:
               - g++-8
           - toolset: gcc-9
             cxxstd: "03,11,14,17,2a"
-            os: ubuntu-latest
-            container: ubuntu:18.04
+            os: ubuntu-20.04
             install:
               - g++-9
           - toolset: gcc-10