diff --git a/package.json b/package.json
index 7e4bcaa..ea9cfc6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "mapnik": "^3.6.0",
+    "mapnik": "~3.6.0",
     "proj4": "^2.4.3",
     "sakura-node-3": "^3.3.6"
   },