Update dependencies

package.json

@@ -51,7 +51,7 @@
     "gulp-concat": "^2.6.0",
     "gulp-coverage": "^0.3.38",
     "gulp-cssnano": "^2.1.2",
-    "gulp-imagemin": "^3.0.1",
+    "gulp-imagemin": "^3.0.2",
     "gulp-mocha": "^2.2.0",
     "gulp-phpunit": "^0.16.0",
     "gulp-sass": "^2.3.2",
@@ -62,7 +62,7 @@
     "merge-stream": "^1.0.0",
     "reflect-metadata": "^0.1.3",
     "rxjs": "5.0.0-beta.6",
-    "scss-base": "^1.1.4",
+    "scss-base": "^1.1.6",
     "systemjs": "^0.19.31",
     "systemjs-builder": "^0.15.23",
     "touch": "^1.0.0",