diff --git a/package.json b/package.json
index 6bd0f8b..fe7e833 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "standard-version": "4.4.0",
     "strip-json-comments-cli": "1.0.1",
     "ts-jest": "23.10.5",
-    "tslib": "1.9.3",
+    "tslib": "1.12.0",
     "tslint": "5.11.0",
     "tslint-config-prettier": "1.17.0",
     "tslint-config-standard": "8.0.1",