diff --git a/lib/main.js b/lib/main.js
index c143543..8b54646 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -22,7 +22,7 @@
 
 var isNonNegativeInteger = require( '@stdlib/assert-is-nonnegative-integer' ).isPrimitive;
 var isCollection = require( '@stdlib/assert-is-collection' );
-var format = require( '@stdlib/string-format' );
+var format = require( '@stdlib/error-tools-fmtprodmsg' );
 var UNICODE_MAX = require( '@stdlib/constants-unicode-max' );
 var UNICODE_MAX_BMP = require( '@stdlib/constants-unicode-max-bmp' );
 
@@ -84,16 +84,16 @@ function fromCodePoint( args ) {
 		}
 	}
 	if ( len === 0 ) {
-		throw new Error( 'insufficient arguments. Must provide either an array of code points or one or more code points as separate arguments.' );
+		throw new Error( format('1Oh1V') );
 	}
 	str = '';
 	for ( i = 0; i < len; i++ ) {
 		pt = arr[ i ];
 		if ( !isNonNegativeInteger( pt ) ) {
-			throw new TypeError( format( 'invalid argument. Must provide valid code points (i.e., nonnegative integers). Value: `%s`.', pt ) );
+			throw new TypeError( format( '1OhAM', pt ) );
 		}
 		if ( pt > UNICODE_MAX ) {
-			throw new RangeError( format( 'invalid argument. Must provide a valid code point (i.e., cannot exceed %u). Value: `%s`.', UNICODE_MAX, pt ) );
+			throw new RangeError( format( '1OhE5', UNICODE_MAX, pt ) );
 		}
 		if ( pt <= UNICODE_MAX_BMP ) {
 			str += fromCharCode( pt );
diff --git a/package.json b/package.json
index afd1555..2839f96 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "@stdlib/process-read-stdin": "^0.2.3",
     "@stdlib/regexp-eol": "^0.2.3",
     "@stdlib/streams-node-stdin": "^0.2.3",
-    "@stdlib/string-format": "^0.2.3",
+    "@stdlib/error-tools-fmtprodmsg": "^0.2.3",
     "@stdlib/types": "^0.5.1",
     "@stdlib/utils-regexp-from-string": "^0.2.3",
     "@stdlib/error-tools-fmtprodmsg": "^0.2.3"