diff --git a/modules/i3s/src/lib/parsers/parse-arcgis-webscene.ts b/modules/i3s/src/lib/parsers/parse-arcgis-webscene.ts
index e97a6ebdfd..deed921260 100644
--- a/modules/i3s/src/lib/parsers/parse-arcgis-webscene.ts
+++ b/modules/i3s/src/lib/parsers/parse-arcgis-webscene.ts
@@ -29,7 +29,7 @@ const NOT_SUPPORTED_CRS_ERROR = 'NOT_SUPPORTED_CRS_ERROR';
 class LayerError extends Error {
   constructor(
     message: string,
-    public details: any
+    public details: unknown
   ) {
     super(message);
     this.name = 'LayerError';