diff --git a/package.json b/package.json
index bcac1a4..e4fcee5 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
 	},
 	"dependencies": {
 		"@babel/core": "^7.4.0",
+		"@babel/plugin-transform-block-scoping": "^7.4.0",
 		"@types/astring": "^1.3.0",
 		"@types/file-type": "^10.9.1",
 		"@types/iltorb": "^2.3.0",
diff --git a/src/constant/constant.ts b/src/constant/constant.ts
index 970e77c..8007daa 100644
--- a/src/constant/constant.ts
+++ b/src/constant/constant.ts
@@ -37,7 +37,7 @@ export const constant: IConstant = {
 			},
 			features: [],
 			version: environment.NPM_PACKAGE_DEPENDENCIES_SYSTEMJS,
-			dependencies: ["es.promise", "fetch"],
+			dependencies: ["es.object.create", "es.object.freeze", "es.object.define-property", "es.promise", "fetch"],
 			contexts: ALL_CONTEXTS
 		},
 		zone: {
diff --git a/src/service/minify/minify-service.ts b/src/service/minify/minify-service.ts
index b78fb5c..fcb1319 100644
--- a/src/service/minify/minify-service.ts
+++ b/src/service/minify/minify-service.ts
@@ -25,7 +25,7 @@ export class MinifyService implements IMinifyService {
 			sourceMaps: false,
 			root: "",
 			presets: [],
-			plugins: []
+			plugins: ["@babel/plugin-transform-block-scoping"]
 		});
 		return result.code;
 	}
diff --git a/test/server/server.test.ts b/test/server/server.test.ts
index b6716a2..51cd274 100644
--- a/test/server/server.test.ts
+++ b/test/server/server.test.ts
@@ -61,7 +61,7 @@ test("Will not generate polyfills for 'Element' on Chrome 69 for a Galaxy S5", a
 	t.true(result.statusCode === constants.HTTP_STATUS_OK);
 });
 
-test.only("Will generate correct polyfills for IE11", async t => {
+test("Will generate correct polyfills for IE11", async t => {
 	const result = await sendRequest({
 		http2: config.http2,
 		tls: true,
@@ -71,7 +71,7 @@ test.only("Will generate correct polyfills for IE11", async t => {
 		port: config.port,
 		path: `${
 			constant.endpoint.polyfill
-		}?features=web-components,es,class-list,system|variant=system,custom-event,url,fetch,object-fit,intersection-observer,animation,regenerator-runtime,requestanimationframe,requestidlecallback,resize-observer,pointer-event,dom.collections.iterable,scroll-behavior,zone|error|rxjs|shadydom,esnext.reflect,intl|force|locale=en~da`,
+		}?features=web-components,es,class-list,systemjs|variant=system,custom-event,url,fetch,object-fit,intersection-observer,animation,regenerator-runtime,requestanimationframe,requestidlecallback,resize-observer,pointer-event,dom.collections.iterable,scroll-behavior,zone|error|rxjs|shadydom,esnext.reflect,intl|force|locale=en~da`,
 		acceptEncoding: undefined
 	});