diff --git a/packages/compiler/src/output/ts_emitter.ts b/packages/compiler/src/output/ts_emitter.ts
index 6f3b138c1e..cb56dab783 100644
--- a/packages/compiler/src/output/ts_emitter.ts
+++ b/packages/compiler/src/output/ts_emitter.ts
@@ -15,6 +15,9 @@ import * as o from './output_ast';
 
 const _debugFilePath = '/debug/lib';
 
+import * as ts from 'typescript';
+ts.parseConfig
+
 export function debugOutputAstAsTypeScript(ast: o.Statement | o.Expression | o.Type | any[]):
     string {
   const converter = new _TsEmitterVisitor();
diff --git a/scripts/release/post-check b/scripts/release/post-check
index 9d46036aba..5ae3ad505d 100755
--- a/scripts/release/post-check
+++ b/scripts/release/post-check
@@ -7,7 +7,7 @@
 mkdir tmp
 cd tmp
 npm init -y
-npm install typescript@2.6 rxjs@5.5.0 zone.js@0.8.10 @angular/{animations,core,common,forms,router,platform-browser,platform-browser-dynamic,platform-webworker,platform-webworker-dynamic,platform-server,service-worker,compiler,compiler-cli,upgrade,language-service} --save
+npm install typescript@2.6 rxjs@5.5.0 zone.js@0.8.10 @angular/{animations,core,common,forms,router,platform-browser,platform-browser-dynamic,platform-webworker,platform-webworker-dynamic,platform-server,service-worker,compiler,compiler-cli,upgrade,language-service}@v5-lts --save
 cd ..
 rm -rf tmp
 
diff --git a/scripts/release/publish b/scripts/release/publish
index 204be53eee..17f19e33d3 100755
--- a/scripts/release/publish
+++ b/scripts/release/publish
@@ -3,4 +3,4 @@
 # Use for PATCH releases
 # Publish all packages in `dist/packages-dist` to npm
 
-(cd dist/packages-dist; for p in `ls .`; do npm publish --access public $p; done)
\ No newline at end of file
+(cd dist/packages-dist; for p in `ls .`; do npm publish --access public $p --tag v5-lts; done)