diff --git a/packages/angular_devkit/build_angular/src/tslint/index.ts b/packages/angular_devkit/build_angular/src/tslint/index.ts
index 434af39f5e6a..0801bb0c514a 100644
--- a/packages/angular_devkit/build_angular/src/tslint/index.ts
+++ b/packages/angular_devkit/build_angular/src/tslint/index.ts
@@ -31,7 +31,11 @@ async function _loadTslint() {
   }
 
   const version = tslint.Linter.VERSION && tslint.Linter.VERSION.split('.');
-  if (!version || version.length < 2 || Number(version[0]) < 5 || Number(version[1]) < 5) {
+  if (
+    !version || version.length < 2
+    || (Number(version[0]) === 5 && Number(version[1]) < 5) // 5.5+
+    || Number(version[0]) < 5 // 6.0+
+  ) {
     throw new Error('TSLint must be version 5.5 or higher.');
   }