diff --git a/package.json b/package.json
index c09d951..5e1e950 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "chai": "^4.1.2",
     "coveralls": "^3.0.0",
     "cross-env": "^5.1.3",
-    "documentation": "^6.1.0",
+    "documentation": "^8.1.1",
     "in-publish": "^2.0.0",
     "mocha": "^5.0.1",
     "mocha-junit-reporter": "^1.17.0",