diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index 1623bc3af426..1f4ad56875d0 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -268,8 +268,8 @@ jobs:
 
   build-and-check-gcc-5:
 
-    runs-on: ubuntu-22.04
-    container: ubuntu:18.04
+    runs-on: ubuntu-20.04
+    ##container: ubuntu:18.04
     env:
       # otherwise we hang when installing tzdata
       DEBIAN_FRONTEND: noninteractive
@@ -278,6 +278,8 @@ jobs:
 
     - name: Install Deps
       run: |
+          echo "deb http://old-releases.ubuntu.com/ubuntu zesty main" | sudo tee /etc/apt/sources.list.d/zesty.list;
+          apt-add-repository -r universe;
           apt-get update;
           apt-get install -y \
                   curl \