diff --git a/lib/main.js b/lib/main.js
index ec4cc73..c3480f7 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -24,7 +24,7 @@ var isCollection = require( '@stdlib/assert-is-collection' );
 var isInteger = require( '@stdlib/assert-is-integer' ).isPrimitive;
 var isString = require( '@stdlib/assert-is-string' ).isPrimitive;
 var indexOfSameValue = require( '@stdlib/array-base-index-of-same-value' );
-var format = require( '@stdlib/string-format' );
+var format = require( '@stdlib/error-tools-fmtprodmsg' );
 
 
 // MAIN //
@@ -75,14 +75,14 @@ function contains( value, searchValue, position ) {
 
 	isStr = isString( value );
 	if ( !isCollection( value ) && !isStr ) {
-		throw new TypeError( format( 'invalid argument. First argument must be array-like. Value: `%s`.', value ) );
+		throw new TypeError( format( '02b38', value ) );
 	}
 	if ( arguments.length < 2 ) {
-		throw new Error( 'insufficient arguments. Must provide a search value.' );
+		throw new Error( format('02b0A') );
 	}
 	if ( arguments.length > 2 ) {
 		if ( !isInteger( position ) ) {
-			throw new TypeError( format( 'invalid argument. Third argument must be an integer. Value: `%s`.', position ) );
+			throw new TypeError( format( '02b2z', position ) );
 		}
 		pos = position;
 		if ( pos < 0 ) {
@@ -93,7 +93,7 @@ function contains( value, searchValue, position ) {
 	}
 	if ( isStr ) {
 		if ( !isString( searchValue ) ) {
-			throw new TypeError( format( 'invalid argument. Second argument must be a string. Value: `%s`.', searchValue ) );
+			throw new TypeError( format( '02b39', searchValue ) );
 		}
 		return value.indexOf( searchValue, pos ) !== -1;
 	}
diff --git a/package.json b/package.json
index 275108c..be327a8 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@stdlib/assert-is-collection": "^0.2.2",
     "@stdlib/assert-is-integer": "^0.2.2",
     "@stdlib/assert-is-string": "^0.2.2",
-    "@stdlib/string-format": "^0.2.2",
+    "@stdlib/error-tools-fmtprodmsg": "^0.2.2",
     "@stdlib/types": "^0.4.3",
     "@stdlib/error-tools-fmtprodmsg": "^0.2.2"
   },