diff --git a/src/services/shims.ts b/src/services/shims.ts
index 9940a6140f7..3dc28763b17 100644
--- a/src/services/shims.ts
+++ b/src/services/shims.ts
@@ -1056,6 +1056,6 @@ namespace TypeScript.Services {
 // TODO: it should be moved into a namespace though.
 
 /* @internal */
-const toolsVersion = "1.6";
+const toolsVersion = "1.8";
 
 /* tslint:enable:no-unused-variable */
\ No newline at end of file