diff --git a/package.json b/package.json
index b46b0bd7..976029cb 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   ],
   "engines": {
     "node": "=10.15.2",
-    "npm": "=5.8.0"
+    "npm": "=5.6.0"
   },
   "license": "AGPL-3.0",
   "preferGlobal": true,