diff --git a/lib/node_modules/@stdlib/utils/merge/lib/mergefcn.js b/lib/node_modules/@stdlib/utils/merge/lib/mergefcn.js
index <HASH>..<HASH> 100644
--- a/lib/node_modules/@stdlib/utils/merge/lib/mergefcn.js
+++ b/lib/node_modules/@stdlib/utils/merge/lib/mergefcn.js
@@ -2,7 +2,7 @@
 
 // MODULES //
 
-var isObject = require( '@stdlib/utils/is-object' ); // TODO: plain object
+var isObject = require( '@stdlib/utils/is-plain-object' );
 var deepMerge = require( './deepmerge.js' );
Use utility to test if a value is a plain object