diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c90d13..8d0c284 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,10 +12,12 @@ For a full diff see [`64ced12...main`][64ced12...main].
 
 - Added `Version` as a value object ([#1]), by [@localheinz]
 - Added `Major` as a value object ([#3]), by [@localheinz]
+- Added `Minor` as a value object ([#4]), by [@localheinz]
 
 [64ced12...main]: https://github.com/ergebnis/version/compare/64ced12...main
 
 [#1]: https://github.com/ergebnis/version/pull/1
 [#3]: https://github.com/ergebnis/version/pull/3
+[#4]: https://github.com/ergebnis/version/pull/4
 
 [@localheinz]: https://github.com/localheinz
diff --git a/README.md b/README.md
index b0a2de9..f8007c2 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ $version = Version\Version::fromString('1.2.3');
 echo $version->toString(); // 1.2.3
 
 echo $version->major()->toString(); // 1
+echo $version->minor()->toString(); // 2
 ```
 
 ### Compare a `Version` with another `Version`
@@ -90,6 +91,39 @@ $one->equals($three); // false
 $one->equals($two); // true
 ```
 
+### Create a `Minor` from a `string`
+
+```php
+<?php
+
+declare(strict_types=1);
+
+use Ergebnis\Version;
+
+$minor = Version\Minor::fromString('1');
+
+echo $minor->toString(); // 1
+```
+
+### Compare a `Minor` with another `Minor`
+
+```php
+<?php
+
+declare(strict_types=1);
+
+use Ergebnis\Version;
+
+$one = Version\Minor::::fromString('1');
+$two = Version\Minor::fromString('1');
+$three = Version\Minor::fromString('2');
+
+$one->equals($two); // true
+$one->equals($three); // false
+
+$one->equals($two); // true
+```
+
 ## Changelog
 
 The maintainers of this project record notable changes to this project in a [changelog](CHANGELOG.md).
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index b132131..441f0f0 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -6,6 +6,12 @@
       <code>provideValidValue</code>
     </PossiblyUnusedMethod>
   </file>
+  <file src="test/Unit/MinorTest.php">
+    <PossiblyUnusedMethod>
+      <code>provideInvalidValue</code>
+      <code>provideValidValue</code>
+    </PossiblyUnusedMethod>
+  </file>
   <file src="test/Unit/VersionTest.php">
     <PossiblyUnusedMethod>
       <code>provideInvalidValue</code>
diff --git a/src/Exception/InvalidMinor.php b/src/Exception/InvalidMinor.php
new file mode 100644
index 0000000..a5cac14
--- /dev/null
+++ b/src/Exception/InvalidMinor.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2023 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/version
+ */
+
+namespace Ergebnis\Version\Exception;
+
+final class InvalidMinor extends \InvalidArgumentException
+{
+    public static function fromString(string $value): self
+    {
+        return new self(\sprintf(
+            'Value "%s" does not appear to be valid.',
+            $value,
+        ));
+    }
+}
diff --git a/src/Minor.php b/src/Minor.php
new file mode 100644
index 0000000..e7dd0a7
--- /dev/null
+++ b/src/Minor.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2023 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/version
+ */
+
+namespace Ergebnis\Version;
+
+final class Minor
+{
+    /**
+     * @see https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+     * @see https://regex101.com/r/Ly7O1x/3/
+     */
+    private const REGEX = '/^(?P<minor>0|[1-9]\d*)$/';
+
+    private function __construct(private readonly string $value)
+    {
+    }
+
+    /**
+     * @throws Exception\InvalidMinor
+     */
+    public static function fromString(string $value): self
+    {
+        if (1 !== \preg_match(self::REGEX, $value)) {
+            throw Exception\InvalidMinor::fromString($value);
+        }
+
+        return new self($value);
+    }
+
+    public function toString(): string
+    {
+        return $this->value;
+    }
+
+    public function equals(self $other): bool
+    {
+        return $this->value === $other->value;
+    }
+}
diff --git a/src/Version.php b/src/Version.php
index 9bdc4d3..3b124e4 100644
--- a/src/Version.php
+++ b/src/Version.php
@@ -24,6 +24,7 @@ final class Version
     private function __construct(
         private readonly string $value,
         private readonly Major $major,
+        private readonly Minor $minor,
     ) {
     }
 
@@ -39,6 +40,7 @@ public static function fromString(string $value): self
         return new self(
             $value,
             Major::fromString($matches['major']),
+            Minor::fromString($matches['minor']),
         );
     }
 
@@ -56,4 +58,9 @@ public function major(): Major
     {
         return $this->major;
     }
+
+    public function minor(): Minor
+    {
+        return $this->minor;
+    }
 }
diff --git a/test/Unit/Exception/InvalidMinorTest.php b/test/Unit/Exception/InvalidMinorTest.php
new file mode 100644
index 0000000..9c1b85e
--- /dev/null
+++ b/test/Unit/Exception/InvalidMinorTest.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2023 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/version
+ */
+
+namespace Ergebnis\Version\Test\Unit\Exception;
+
+use Ergebnis\Version\Exception;
+use Ergebnis\Version\Test;
+use PHPUnit\Framework;
+
+#[Framework\Attributes\CoversClass(Exception\InvalidMinor::class)]
+final class InvalidMinorTest extends Framework\TestCase
+{
+    use Test\Util\Helper;
+
+    public function testFromStringReturnsException(): void
+    {
+        $value = self::faker()->word();
+
+        $exception = Exception\InvalidMinor::fromString($value);
+
+        $message = \sprintf(
+            'Value "%s" does not appear to be valid.',
+            $value,
+        );
+
+        self::assertSame($message, $exception->getMessage());
+    }
+}
diff --git a/test/Unit/MinorTest.php b/test/Unit/MinorTest.php
new file mode 100644
index 0000000..e010d3c
--- /dev/null
+++ b/test/Unit/MinorTest.php
@@ -0,0 +1,107 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Copyright (c) 2023 Andreas Möller
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE.md file that was distributed with this source code.
+ *
+ * @see https://github.com/ergebnis/version
+ */
+
+use Ergebnis\Version\Exception;
+use Ergebnis\Version\Minor;
+use Ergebnis\Version\Test;
+use Ergebnis\Version\Version;
+use PHPUnit\Framework;
+
+#[Framework\Attributes\CoversClass(Minor::class)]
+#[Framework\Attributes\UsesClass(Exception\InvalidMinor::class)]
+final class MinorTest extends Framework\TestCase
+{
+    use Test\Util\Helper;
+
+    #[Framework\Attributes\DataProvider('provideInvalidValue')]
+    public function testFromStringRejectsInvalidValue(string $value): void
+    {
+        $this->expectException(Exception\InvalidMinor::class);
+
+        Minor::fromString($value);
+    }
+
+    /**
+     * @see https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+     * @see https://regex101.com/r/Ly7O1x/3/
+     *
+     * @return Generator<string, array{0: string}>
+     */
+    public static function provideInvalidValue(): Generator
+    {
+        $faker = self::faker();
+
+        $values = [
+            'leading-zero' => \sprintf(
+                '0%d',
+                $faker->numberBetween(1),
+            ),
+            'word' => $faker->word(),
+        ];
+
+        foreach ($values as $value) {
+            yield $value => [
+                $value,
+            ];
+        }
+    }
+
+    #[Framework\Attributes\DataProvider('provideValidValue')]
+    public function testFromStringReturnsMinor(string $value): void
+    {
+        $minor = Minor::fromString($value);
+
+        self::assertSame($value, $minor->toString());
+    }
+
+    /**
+     * @see https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+     * @see https://regex101.com/r/Ly7O1x/3/
+     *
+     * @return Generator<string, array{0: string}>
+     */
+    public static function provideValidValue(): Generator
+    {
+        $values = [
+            'zero' => '0',
+            'one' => '1',
+            'greater-than-one' => (string) self::faker()->numberBetween(2),
+        ];
+
+        foreach ($values as $key => $value) {
+            yield $key => [
+                $value,
+            ];
+        }
+    }
+
+    public function testEqualsReturnsFalseWhenValuesAreDifferent(): void
+    {
+        $faker = self::faker()->unique();
+
+        $one = Minor::fromString((string) $faker->numberBetween(0));
+        $two = Minor::fromString((string) $faker->numberBetween(0));
+
+        self::assertFalse($one->equals($two));
+    }
+
+    public function testEqualsReturnsTrueWhenValueIsSame(): void
+    {
+        $value = (string) self::faker()->numberBetween(0);
+
+        $one = Minor::fromString($value);
+        $two = Minor::fromString($value);
+
+        self::assertTrue($one->equals($two));
+    }
+}
diff --git a/test/Unit/VersionTest.php b/test/Unit/VersionTest.php
index 970d351..04eb50a 100644
--- a/test/Unit/VersionTest.php
+++ b/test/Unit/VersionTest.php
@@ -15,6 +15,7 @@
 
 use Ergebnis\Version\Exception;
 use Ergebnis\Version\Major;
+use Ergebnis\Version\Minor;
 use Ergebnis\Version\Test;
 use Ergebnis\Version\Version;
 use PHPUnit\Framework;
@@ -22,6 +23,7 @@
 #[Framework\Attributes\CoversClass(Version::class)]
 #[Framework\Attributes\UsesClass(Exception\InvalidVersion::class)]
 #[Framework\Attributes\UsesClass(Major::class)]
+#[Framework\Attributes\UsesClass(Minor::class)]
 final class VersionTest extends Framework\TestCase
 {
     use Test\Util\Helper;
@@ -95,122 +97,156 @@ public static function provideInvalidValue(): \Generator
     public function testFromStringReturnsVersion(
         string $value,
         Major $major,
+        Minor $minor,
     ): void {
         $version = Version::fromString($value);
 
         self::assertSame($value, $version->toString());
 
         self::assertEquals($major, $version->major());
+        self::assertEquals($minor, $version->minor());
     }
 
     /**
      * @see https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
      * @see https://regex101.com/r/Ly7O1x/3/
      *
-     * @return \Generator<string, array{0: string, 1: Major}>
+     * @return \Generator<string, array{0: string, 1: Major, 2: Minor}>
      */
     public static function provideValidValue(): \Generator
     {
         $values = [
             '0.0.4' => [
                 Major::fromString('0'),
+                Minor::fromString('0'),
             ],
             '1.2.3' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '10.20.30' => [
                 Major::fromString('10'),
+                Minor::fromString('20'),
             ],
             '1.1.2-prerelease+meta' => [
                 Major::fromString('1'),
+                Minor::fromString('1'),
             ],
             '1.1.2+meta' => [
                 Major::fromString('1'),
+                Minor::fromString('1'),
             ],
             '1.1.2+meta-valid' => [
                 Major::fromString('1'),
+                Minor::fromString('1'),
             ],
             '1.0.0-alpha' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-beta' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha.beta' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha.beta.1' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha.1' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha0.valid' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha.0valid' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha-a.b-c-somethinglong+build.1-aef.1-its-okay' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.0.0-rc.1+build.1' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '2.0.0-rc.1+build.123' => [
                 Major::fromString('2'),
+                Minor::fromString('0'),
             ],
             '1.2.3-beta' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '10.2.3-DEV-SNAPSHOT' => [
                 Major::fromString('10'),
+                Minor::fromString('2'),
             ],
             '1.2.3-SNAPSHOT-123' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '1.0.0' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '2.0.0' => [
                 Major::fromString('2'),
+                Minor::fromString('0'),
             ],
             '1.1.7' => [
                 Major::fromString('1'),
+                Minor::fromString('1'),
             ],
             '2.0.0+build.1848' => [
                 Major::fromString('2'),
+                Minor::fromString('0'),
             ],
             '2.0.1-alpha.1227' => [
                 Major::fromString('2'),
+                Minor::fromString('0'),
             ],
             '1.0.0-alpha+beta' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '1.2.3----RC-SNAPSHOT.12.9.1--.12+788' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '1.2.3----R-S.12.9.1--.12+meta' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '1.2.3----RC-SNAPSHOT.12.9.1--.12' => [
                 Major::fromString('1'),
+                Minor::fromString('2'),
             ],
             '1.0.0+0.build.1-rc.10000aaa-kk-0.1' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
             '99999999999999999999999.999999999999999999.99999999999999999' => [
                 Major::fromString('99999999999999999999999'),
+                Minor::fromString('999999999999999999'),
             ],
             '1.0.0-0A.is.legal' => [
                 Major::fromString('1'),
+                Minor::fromString('0'),
             ],
         ];
 
-        foreach ($values as $value => [$major]) {
+        foreach ($values as $value => [$major, $minor]) {
             yield $value => [
                 $value,
                 $major,
+                $minor,
             ];
         }
     }