diff --git a/src/Link.php b/src/Link.php
index 5bd49d4..be1c19f 100644
--- a/src/Link.php
+++ b/src/Link.php
@@ -201,15 +201,14 @@ private function validateAttributeName($name, string $context): void
 
     /**
      * @param mixed $value
-     * @throws InvalidArgumentException If $value is neither a scalar nor an array.
-     * @throws InvalidArgumentException If $value is an array, but one or more values
-     *     is not a string.
+     * @throws InvalidArgumentException If $value is neither a scalar, an array nor null.
+     * @throws InvalidArgumentException If $value is an array, but one or more values is not a string.
      */
     private function validateAttributeValue($value, string $context): void
     {
-        if (! is_scalar($value) && ! is_array($value)) {
+        if (! is_scalar($value) && ! is_array($value) && $value !== null) {
             throw new InvalidArgumentException(sprintf(
-                '%s expects the $value to be a PHP primitive or array of strings; received %s',
+                '%s expects the $value to be a PHP primitive, an array of strings or null; received %s',
                 $context,
                 is_object($value) ? $value::class : gettype($value)
             ));
diff --git a/test/LinkTest.php b/test/LinkTest.php
index 0723de9..093f527 100644
--- a/test/LinkTest.php
+++ b/test/LinkTest.php
@@ -45,9 +45,10 @@ public function testCanConstructLinkWithRelationAndTemplatedFlag(): void
 
     public function testCanConstructLinkWithRelationAndAttributes(): void
     {
-        $link = new Link('self', '', false, ['foo' => 'bar']);
+        $attributes = ['foo' => 'bar', 'baz' => null];
+        $link       = new Link('self', '', false, $attributes);
         $this->assertEquals(['self'], $link->getRels());
-        $this->assertEquals(['foo' => 'bar'], $link->getAttributes());
+        $this->assertEquals($attributes, $link->getAttributes());
     }
 
     public function testCanConstructFullyPopulatedLink(): void