diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c7da3df4fa..893c4c4a28 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -361,14 +361,14 @@ jobs:
                       db: "mcr.microsoft.com/mssql/server:2017-latest"
                       db_alias: 'MSSQL 2017'
                     - php: '7.2'
-                      db: "mcr.microsoft.com/mssql/server:2019-latest"
+                      db: "mcr.microsoft.com/mssql/server:2019-CU27-ubuntu-20.04"
                       db_alias: 'MSSQL 2019'
 
         name: PHP ${{ matrix.php }} - ${{ matrix.db_alias != '' && matrix.db_alias || matrix.db }}
 
         services:
             mssql:
-                image: ${{ matrix.db != 'mcr.microsoft.com/mssql/server:2017-latest' && matrix.db != 'mcr.microsoft.com/mssql/server:2019-latest' && 'mcr.microsoft.com/mssql/server:2017-latest' || matrix.db }}
+                image: ${{ matrix.db != 'mcr.microsoft.com/mssql/server:2017-latest' && matrix.db != 'mcr.microsoft.com/mssql/server:2019-CU27-ubuntu-20.04' && 'mcr.microsoft.com/mssql/server:2017-latest' || matrix.db }}
                 env:
                     SA_PASSWORD: "Pssw0rd_12"
                     ACCEPT_EULA: "y"
@@ -400,7 +400,7 @@ jobs:
               env:
                   MATRIX_DB: ${{ matrix.db }}
               run: |
-                  if [ $MATRIX_DB == 'mcr.microsoft.com/mssql/server:2017-latest' ] || [ $MATRIX_DB == 'mcr.microsoft.com/mssql/server:2019-latest' ]
+                  if [ $MATRIX_DB == 'mcr.microsoft.com/mssql/server:2017-latest' ] || [ $MATRIX_DB == 'mcr.microsoft.com/mssql/server:2019-CU27-ubuntu-20.04' ]
                   then
                       db='mssql'
                   else