diff --git a/appveyor.yml b/appveyor.yml
index 8f81e3d4..d123fbd4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,19 +22,19 @@ environment:
         BUILD_PLATFORM: x64
         TEST_PHP_SQL_SERVER: (local)\SQL2017
         SQL_INSTANCE: SQL2017
-        PHP_VC: 15
-        PHP_MAJOR_VER: 7.3
+        PHP_VC: vc15
+        PHP_MAJOR_VER: 7.4
         PHP_MINOR_VER: latest
         PHP_EXE_PATH: x64\Release_TS
         THREAD: ts
         platform: x64
-      - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
         BUILD_PLATFORM: x86
-        TEST_PHP_SQL_SERVER: (local)\SQL2016
-        SQL_INSTANCE: SQL2016
-        PHP_VC: 15
-        PHP_MAJOR_VER: 7.4
-        PHP_MINOR_VER: latest
+        TEST_PHP_SQL_SERVER: (local)\SQL2019
+        SQL_INSTANCE: SQL2019
+        PHP_VC: vs16
+        PHP_MAJOR_VER: 8.0
+        PHP_MINOR_VER: 0beta1
         PHP_EXE_PATH: Release
         THREAD: nts
         platform: x86
@@ -83,7 +83,7 @@ install:
         }
     - echo Downloading MSODBCSQL 17
     # AppVeyor build works are x64 VMs and 32-bit ODBC driver cannot be installed on it
-    - ps: (new-object net.webclient).DownloadFile('https://download.microsoft.com/download/E/6/B/E6BFDC7A-5BCD-4C51-9912-635646DA801E/en-US/17.5.2.1/x64/msodbcsql.msi', 'c:\projects\msodbcsql.msi')
+    - ps: (new-object net.webclient).DownloadFile('https://download.microsoft.com/download/6/b/3/6b3dd05c-678c-4e6b-b503-1d66e16ef23d/en-US/17.6.1.1/x64/msodbcsql.msi', 'c:\projects\msodbcsql.msi')
     - cmd /c start /wait msiexec /i "c:\projects\msodbcsql.msi" /q IACCEPTMSODBCSQLLICENSETERMS=YES ADDLOCAL=ALL
     - echo Checking the version of MSODBCSQL
     - reg query "HKLM\SOFTWARE\ODBC\odbcinst.ini\ODBC Driver 17 for SQL Server"
@@ -106,7 +106,7 @@ build_script:
     - cd c:\projects
     - python -V
     - python builddrivers.py --PHPVER=%PHP_VERSION% --ARCH=%BUILD_PLATFORM% --THREAD=%THREAD% --SOURCE=%APPVEYOR_BUILD_FOLDER%\source --TESTING --NO_RENAME
-    - cd c:\projects\php-sdk\phpdev\vc%PHP_VC%\%BUILD_PLATFORM%\php-%PHP_VERSION%-src\
+    - cd c:\projects\php-sdk\phpdev\%PHP_VC%\%BUILD_PLATFORM%\php-%PHP_VERSION%-src\
     - set PHP_SRC_DIR=%CD%\ext
     - cd %PHP_EXE_PATH%
     - set PHP_EXE_PATH=%CD%
diff --git a/test/functional/sqlsrv/MsHelper.inc b/test/functional/sqlsrv/MsHelper.inc
index 2058e5e0..590e8b33 100644
--- a/test/functional/sqlsrv/MsHelper.inc
+++ b/test/functional/sqlsrv/MsHelper.inc
@@ -1088,7 +1088,7 @@ function getColSize($k)
         case 19:    return ("1073741823");
         case 20:    return ("512");
         case 21:    return ("512");
-        case 22:    return ("0)");
+        case 22:    return ("0");
         case 23:    return ("2147483647");
         case 24:    return ("36");
         //case 25:  return ("23");
@@ -1097,7 +1097,7 @@ function getColSize($k)
         case 28:    return ("0");
         default:    break;
     }
-    return ("");
+    return NULL;
 }
 
 function getColPrecision($k)
diff --git a/test/functional/sqlsrv/sqlsrv_378_out_param_error.phpt b/test/functional/sqlsrv/sqlsrv_378_out_param_error.phpt
index a0169225..27942a21 100644
--- a/test/functional/sqlsrv/sqlsrv_378_out_param_error.phpt
+++ b/test/functional/sqlsrv/sqlsrv_378_out_param_error.phpt
@@ -78,7 +78,7 @@ function executeSP($conn, $procName, $noRef, $prepare)
     $expected = 3;
     $v1 = 1;
     $v2 = 2;
-    $v3 = 'str';
+    $v3 = 0;
 
     $res = true;
     $tsql = "{call $procName( ?, ?, ?)}";