diff --git a/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.js b/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.js
index 550d71073648..fe75656f325d 100644
--- a/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.js
@@ -34,7 +34,9 @@ bench( pkg, function benchmark( b ) {
 	var y;
 	var i;
 
-	x = uniform( 100, 1.1, 100.0 );
+	x = uniform( 100, 1.1, 100.0, {
+		'dtype': 'float64'
+	});
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
diff --git a/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.native.js
index ef0fbfa697e0..0c8b9f01cbea 100644
--- a/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/acoth/benchmark/benchmark.native.js
@@ -22,6 +22,7 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
+var format = require( '@stdlib/string/format' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -38,12 +39,14 @@ var opts = {
 
 // MAIN //
 
-bench( pkg+'::native', opts, function benchmark( b ) {
+bench( format( '%s::native', pkg ), opts, function benchmark( b ) {
 	var x;
 	var y;
 	var i;
 
-	x = uniform( 100, 1.1, 100.0 );
+	x = uniform( 100, 1.1, 100.0, {
+		'dtype': 'float64'
+	});
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {