diff --git a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float32.js b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float32.js
index a578dd12fdf5..e3ae956252ed 100644
--- a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float32.js
+++ b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float32.js
@@ -26,6 +26,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float32Array = require( '@stdlib/array/float32' );
 var array = require( '@stdlib/ndarray/array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var gswap = require( './../lib/main.js' );
 
@@ -102,7 +103,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':len='+len, f );
+		bench( format( '%s:len=%d', pkg, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float64.js b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float64.js
index 3e72ceab8b45..5a531908a7dd 100644
--- a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float64.js
+++ b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.float64.js
@@ -26,6 +26,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Float64Array = require( '@stdlib/array/float64' );
 var array = require( '@stdlib/ndarray/array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var gswap = require( './../lib/main.js' );
 
@@ -102,7 +103,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':len='+len, f );
+		bench( format( '%s:len=%d', pkg, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.js
index 4b2b6177a04c..1f8a1f318ea1 100644
--- a/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/gswap/benchmark/benchmark.js
@@ -25,6 +25,7 @@ var randu = require( '@stdlib/random/base/randu' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var array = require( '@stdlib/ndarray/array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var gswap = require( './../lib/main.js' );
 
@@ -101,7 +102,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':len='+len, f );
+		bench( format( '%s:len=%d', pkg, len ), f );
 	}
 }