diff --git a/extensions/mssql/config.json b/extensions/mssql/config.json
index b103b71d4d..eef6162cac 100644
--- a/extensions/mssql/config.json
+++ b/extensions/mssql/config.json
@@ -1,6 +1,6 @@
 {
 	"downloadUrl": "https://github.com/Microsoft/sqltoolsservice/releases/download/v{#version#}/microsoft.sqltools.servicelayer-{#fileName#}",
-	"version": "3.0.0-release.28",
+	"version": "3.0.0-release.29",
 	"downloadFileNames": {
 		"Windows_86": "win-x86-netcoreapp3.1.zip",
 		"Windows_64": "win-x64-netcoreapp3.1.zip",
diff --git a/extensions/sql-database-projects/src/tools/buildHelper.ts b/extensions/sql-database-projects/src/tools/buildHelper.ts
index ff90ba2302..e74ab978ce 100644
--- a/extensions/sql-database-projects/src/tools/buildHelper.ts
+++ b/extensions/sql-database-projects/src/tools/buildHelper.ts
@@ -22,6 +22,7 @@ const buildFiles: string[] = [
 	'Microsoft.SqlServer.TransactSql.ScriptDom.dll',
 	'Microsoft.SqlServer.Types.dll',
 	'System.ComponentModel.Composition.dll',
+	'System.IO.Packaging.dll',
 	'Microsoft.Data.Tools.Schema.SqlTasks.targets'
 ];