diff --git a/lib/node_modules/@stdlib/blas/base/ssyr2/lib/ndarray.js b/lib/node_modules/@stdlib/blas/base/ssyr2/lib/ndarray.js
index 3e1cca554855..80619579390d 100644
--- a/lib/node_modules/@stdlib/blas/base/ssyr2/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/ssyr2/lib/ndarray.js
@@ -47,6 +47,8 @@ var base = require( './base.js' );
 * @throws {RangeError} second argument must be a nonnegative integer
 * @throws {RangeError} fifth argument must be non-zero
 * @throws {RangeError} eighth argument must be non-zero
+* @throws {RangeError} eleventh argument must be non-zero
+* @throws {RangeError} twelfth argument must be non-zero
 * @returns {Float32Array} `A`
 *
 * @example
@@ -72,6 +74,12 @@ function ssyr2( uplo, N, alpha, x, strideX, offsetX, y, strideY, offsetY, A, str
 	if ( strideY === 0 ) {
 		throw new RangeError( format( 'invalid argument. Eighth argument must be non-zero. Value: `%d`.', strideY ) );
 	}
+	if ( strideA1 === 0 ) {
+		throw new RangeError( format( 'invalid argument. Eleventh argument must be non-zero. Value: `%d`.', strideA1 ) );
+	}
+	if ( strideA2 === 0 ) {
+		throw new RangeError( format( 'invalid argument. Twelfth argument must be non-zero. Value: `%d`.', strideA2 ) );
+	}
 	if ( N === 0 || alpha === 0.0 ) {
 		return A;
 	}
diff --git a/lib/node_modules/@stdlib/blas/base/ssyr2/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/base/ssyr2/test/test.ndarray.js
index 5b0f9e8b74a2..5dcafcc16aaf 100644
--- a/lib/node_modules/@stdlib/blas/base/ssyr2/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/ssyr2/test/test.ndarray.js
@@ -168,6 +168,52 @@ tape( 'the function throws an error if provided an invalid eighth argument', fun
 	}
 });
 
+tape( 'the function throws an error if provided an invalid eleventh argument', function test( t ) {
+	var values;
+	var data;
+	var i;
+
+	data = ru;
+
+	values = [
+		0
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			ssyr2( data.uplo, data.N, data.alpha, new Float32Array( data.x ), data.strideX, data.offsetX, new Float32Array( data.y ), data.strideY, data.offsetY, new Float32Array( data.A ), value, data.strideA2, data.offsetA );
+		};
+	}
+});
+
+tape( 'the function throws an error if provided an invalid twelfth argument', function test( t ) {
+	var values;
+	var data;
+	var i;
+
+	data = ru;
+
+	values = [
+		0
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			ssyr2( data.uplo, data.N, data.alpha, new Float32Array( data.x ), data.strideX, data.offsetX, new Float32Array( data.y ), data.strideY, data.offsetY, new Float32Array( data.A ), data.strideA1, value, data.offsetA );
+		};
+	}
+});
+
 tape( 'the function performs the symmetric rank 2 operation `A = α*x*y^T + α*y*x^T + A` (row-major, upper)', function test( t ) {
 	var expected;
 	var data;