diff --git a/app/package.json b/app/package.json
index 97e57b1f..baf731da 100644
--- a/app/package.json
+++ b/app/package.json
@@ -29,7 +29,7 @@
     "geojson": "^0.5.0",
     "leaflet": "^1.7.1",
     "lodash": "^4.17.21",
-    "mapnik": "^4.5.9",
+    "mapnik": "^4.5.8",
     "markdown-to-jsx": "^7.1.3",
     "node-fs": "^0.1.7",
     "nodemailer": "^6.4.11",