diff --git a/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.js
index 157e978fe653..27cccdf7cd73 100644
--- a/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.js
@@ -25,6 +25,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var array = require( '@stdlib/ndarray/array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var dswap = require( './../lib/main.js' );
 
@@ -97,7 +98,7 @@ 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/dswap/benchmark/benchmark.stacks.js b/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.stacks.js
index 8caa7b37254c..99a9b45f8039 100644
--- a/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.stacks.js
+++ b/lib/node_modules/@stdlib/blas/dswap/benchmark/benchmark.stacks.js
@@ -26,6 +26,7 @@ var pow = require( '@stdlib/math/base/special/pow' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var numel = require( '@stdlib/ndarray/base/numel' );
 var array = require( '@stdlib/ndarray/array' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var dswap = require( './../lib/main.js' );
 
@@ -111,11 +112,11 @@ function main() {
 
 		shape = [ 2, N/2 ];
 		f = createBenchmark( shape );
-		bench( pkg+'::stacks:size='+N+',ndims='+shape.length+',shape=('+shape.join( ',' )+')', f );
+		bench( format( '%s::stacks:size=%d,ndims=%d,shape=(%s)', pkg, N, shape.length, shape.join( ',' ) ), f );
 
 		shape = [ N/2, 2 ];
 		f = createBenchmark( shape );
-		bench( pkg+'::stacks:size='+N+',ndims='+shape.length+',shape=('+shape.join( ',' )+')', f );
+		bench( format( '%s::stacks:size=%d,ndims=%d,shape=(%s)', pkg, N, shape.length, shape.join( ',' ) ), f );
 	}
 }