diff --git a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.js
index 262e8cd657c3..06133050e1ca 100644
--- a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.js
@@ -25,6 +25,7 @@ var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Complex128Array = require( '@stdlib/array/complex128' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var dznrm2 = require( './../lib/dznrm2.js' );
 
@@ -91,7 +92,7 @@ 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/base/dznrm2/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.native.js
index 65c2eef377ca..bf317a6ba7d4 100644
--- a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.native.js
@@ -27,6 +27,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Complex128Array = require( '@stdlib/array/complex128' );
 var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 
 
@@ -96,7 +97,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+'::native:len='+len, opts, f );
+		bench( format( '%s::native:len=%d', pkg, len ), opts, f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.js
index b18262ce03b1..acbb68438432 100644
--- a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.js
@@ -25,6 +25,7 @@ var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Complex128Array = require( '@stdlib/array/complex128' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var dznrm2 = require( './../lib/ndarray.js' );
 
@@ -91,7 +92,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+':ndarray:len='+len, f );
+		bench( format( '%s:ndarray:len=%d', pkg, len ), f );
 	}
 }
 
diff --git a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.native.js
index b419ff5d0d2f..b063576fbce8 100644
--- a/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/base/dznrm2/benchmark/benchmark.ndarray.native.js
@@ -27,6 +27,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var Complex128Array = require( '@stdlib/array/complex128' );
 var tryRequire = require( '@stdlib/utils/try-require' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 
 
@@ -96,7 +97,7 @@ function main() {
 	for ( i = min; i <= max; i++ ) {
 		len = pow( 10, i );
 		f = createBenchmark( len );
-		bench( pkg+'::native:ndarray:len='+len, opts, f );
+		bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
 	}
 }