diff --git a/package.json b/package.json
index ada96cb15..407d4eb24 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "ol": "^10.3.1",
     "ol-contextmenu": "^5.5.0",
     "ol-mapbox-style": "^12.3.5",
-    "proj4": "2.15.0",
+    "proj4": "2.20.2",
     "sortablejs": "1.15.3",
     "typescript": "^5.3.3",
     "whatwg-fetch": "3.6.20",