diff --git a/lib/node_modules/@stdlib/utils/library-manifest/lib/main.js b/lib/node_modules/@stdlib/utils/library-manifest/lib/main.js
index 3dd8ba4b91fb..68909f18606e 100644
--- a/lib/node_modules/@stdlib/utils/library-manifest/lib/main.js
+++ b/lib/node_modules/@stdlib/utils/library-manifest/lib/main.js
@@ -26,6 +26,7 @@ var logger = require( 'debug' );
 var resolve = require( 'resolve' ).sync;
 var parentPath = require( '@stdlib/fs/resolve-parent-path' ).sync;
 var convertPath = require( '@stdlib/utils/convert-path' );
+var format = require( '@stdlib/string/format' );
 var isObject = require( './is_object.js' );
 var unique = require( './unique.js' );
 var validate = require( './validate.js' );
@@ -79,7 +80,7 @@ function manifest( fpath, conditions, options ) {
 	var k;
 
 	if ( typeof fpath !== 'string' ) {
-		throw new TypeError( 'invalid argument. First argument must be a string. Value: `'+fpath+'`.' );
+		throw new TypeError( format( 'invalid argument. First argument must be a string. Value: `%s`.', fpath ) );
 	}
 	opts = defaults();
 	if ( arguments.length > 2 ) {
@@ -107,7 +108,7 @@ function manifest( fpath, conditions, options ) {
 
 	// Handle input conditions...
 	if ( !isObject( conditions ) ) {
-		throw new TypeError( 'invalid argument. Second argument must be an object. Value: `' + conditions + '`.' );
+		throw new TypeError( format( 'invalid argument. Second argument must be an object. Value: `%s`.', conditions ) );
 	}
 	debug( 'Provided conditions: %s', JSON.stringify( conditions ) );
 	coptnames = objectKeys( conf.options );