diff --git a/src/tsconfig.spec.json b/src/tsconfig.spec.json
index 23f020ba87f9e47b22d77e17db37bff95925646a..1a18e6d00cd89eb585ab635d861756f3aab09aa7 100644
--- a/src/tsconfig.spec.json
+++ b/src/tsconfig.spec.json
@@ -4,8 +4,6 @@
     "outDir": "../out-tsc/spec",
     "baseUrl": "./",
     "module": "commonjs",
-    "target": "es5",
-    "downlevelIteration": true,
     "types": [
       "jasmine",
       "node"