diff --git a/lib/main.js b/lib/main.js
index 75dee32..7a20234 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -20,7 +20,7 @@
 
 // MODULES //
 
-var format = require( '@stdlib/string-format' );
+var format = require( '@stdlib/error-tools-fmtprodmsg' );
 
 
 // MAIN //
@@ -56,7 +56,7 @@ var format = require( '@stdlib/string-format' );
 function instanceOf( value, constructor ) {
 	// TODO: replace with `isCallable` check
 	if ( typeof constructor !== 'function' ) {
-		throw new TypeError( format( 'invalid argument. Second argument must be callable. Value: `%s`.', constructor ) );
+		throw new TypeError( format( '03v3E', constructor ) );
 	}
 	return ( value instanceof constructor );
 }
diff --git a/package.json b/package.json
index d30265f..36cf2de 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "url": "https://github.com/stdlib-js/stdlib/issues"
   },
   "dependencies": {
-    "@stdlib/string-format": "^0.2.2",
+    "@stdlib/error-tools-fmtprodmsg": "^0.2.2",
     "@stdlib/error-tools-fmtprodmsg": "^0.2.2"
   },
   "devDependencies": {