Index: Gruntfile.js
===================================================================
--- Gruntfile.js	(revision 9897)
+++ Gruntfile.js	(working copy)
@@ -79,7 +79,9 @@
 				src: ['bp-templates/bp-legacy/css/*.scss'],
 				dest: SOURCE_DIR + 'bp-templates/bp-legacy/css/',
 				options: {
-					outputStyle: 'expanded'
+					outputStyle: 'expanded',
+					indentType: 'tab',
+					indentWidth: '1'
 				}
 			}
 		},
Index: package.json
===================================================================
--- package.json	(revision 9897)
+++ package.json	(working copy)
@@ -19,7 +19,7 @@
     "grunt-jsvalidate": "~0.2.2",
     "grunt-legacy-util": "^0.2.0",
     "grunt-patch-wordpress": "~0.3.0",
-    "grunt-sass": "~0.18.0",
+    "grunt-sass": "~1.0.0",
     "grunt-scss-lint": "~0.3.6",
     "grunt-wp-i18n": "~0.5.0",
     "matchdep": "~0.3.0"