diff --git a/package.json b/package.json
index b7372c1eef..d29189758c 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
   },
   "devDependencies": {
     "clean-css": "3.4.9",
-    "coveralls": "2.11.6",
+    "coveralls": "2.11.8",
     "debounce": "^1.0.0",
     "eslint": "2.2.0",
     "eslint-config-openlayers": "4.0.0",