@@ -24,7 +24,7 @@ var isNonNegativeInteger = require( '@stdlib/assert-is-nonnegative-integer' ).is
 var ctors = require( '@stdlib/array-ctors' );
 var gzeros = require( '@stdlib/array-base-zeros' );
 var defaults = require( '@stdlib/array-defaults' );
-var format = require( '@stdlib/string-format' );
+var format = require( '@stdlib/error-tools-fmtprodmsg' );
 
 
 // VARIABLES //
@@ -55,7 +55,7 @@ function zeros( length ) {
 var dtype;
 var ctor;
 if ( !isNonNegativeInteger( length ) ) {
-throw new TypeError( format( 'invalid argument. First argument must be a nonnegative integer. Value: `%s`.', length ) );
+throw new TypeError( format( '02Z2d', length ) );
 }
 if ( arguments.length > 1 ) {
 dtype = arguments[ 1 ];
@@ -67,7 +67,7 @@ function zeros( length ) {
 }
 ctor = ctors( dtype );
 if ( ctor === null ) {
-throw new TypeError( format( 'invalid argument. Second argument must be a recognized data type. Value: `%s`.', dtype ) );
+throw new TypeError( format( '02Z37', dtype ) );
 }
 return new ctor( length ); // WARNING: we assume that, apart from 'generic', the constructors for supported array data types are zero-filled by default
 }

@@ -41,7 +41,7 @@
 "@stdlib/array-ctors": "^0.2.1",
 "@stdlib/array-defaults": "^0.2.1",
 "@stdlib/assert-is-nonnegative-integer": "^0.2.1",
-"@stdlib/string-format": "^0.2.1",
+"@stdlib/error-tools-fmtprodmsg": "^0.2.1",
 "@stdlib/types": "^0.3.2",
 "@stdlib/error-tools-fmtprodmsg": "^0.2.1"
 },