diff --git a/.img/version.png b/.img/version.png
index 44133ce..61d3e75 100644
Binary files a/.img/version.png and b/.img/version.png differ
diff --git a/README.md b/README.md
index 395d3fa..73ac9ed 100644
--- a/README.md
+++ b/README.md
@@ -65,15 +65,14 @@ sealed class Pubspec {
     build: <String>[],
   );
 
-  static final DateTime timestamp = DateTime(
-    2023,
-    6,
-    30,
-    13,
-    12,
-    15,
-    487,
-    936,
+  static const PubspecVersion version = (
+    representation: r'4.0.0-pre.1',
+    canonical: r'4.0.0-pre.1',
+    major: 4,
+    minor: 0,
+    patch: 0,
+    preRelease: <String>[r'pre', r'1'],
+    build: <String>[],
   );
 
   static const String name = r'pubspec_generator';
diff --git a/example/example.dart b/example/example.dart
index efef97b..cdc761c 100644
--- a/example/example.dart
+++ b/example/example.dart
@@ -46,9 +46,9 @@ library pubspec;
 typedef PubspecVersion = ({
   String representation,
   String canonical,
-  String major,
-  String minor,
-  String patch,
+  int major,
+  int minor,
+  int patch,
   List<String> preRelease,
   List<String> build
 });
@@ -95,14 +95,15 @@ sealed class Pubspec {
     // Canonicalized string representation of the version.
     canonical: r'4.0.0-pre.1',
     // MAJOR version when you make incompatible API changes.
-    // The major version number: "1" in "1.2.3".
-    major: r'4',
+    // The major version number: 1 in "1.2.3".
+    major: 4,
     // MINOR version when you add functionality
     // in a backward compatible manner.
-    // The minor version number: "2" in "1.2.3".
-    minor: r'0',
-    // The patch version number: "3" in "1.2.3".
-    patch: r'0',
+    // The minor version number: 2 in "1.2.3".
+    minor: 0,
+    // PATCH version when you make backward compatible bug fixes.
+    // The patch version number: 3 in "1.2.3".
+    patch: 0,
     // The pre-release identifier: "foo" in "1.2.3-foo".
     preRelease: <String>[r'pre', r'1'],
     // The build identifier: "foo" in "1.2.3+foo".
@@ -115,10 +116,10 @@ sealed class Pubspec {
     6,
     30,
     13,
-    24,
-    42,
-    973,
-    864,
+    41,
+    23,
+    584,
+    25,
   );
 
   /// Name
diff --git a/lib/src/generator/typedef_generator_mixin.dart b/lib/src/generator/typedef_generator_mixin.dart
index 0526360..bd070c8 100644
--- a/lib/src/generator/typedef_generator_mixin.dart
+++ b/lib/src/generator/typedef_generator_mixin.dart
@@ -12,9 +12,9 @@ mixin TypedefGeneratorMixin on PubspecGenerator {
       ..writeln('typedef PubspecVersion = ({')
       ..writeln('  String representation,')
       ..writeln('  String canonical,')
-      ..writeln('  String major,')
-      ..writeln('  String minor,')
-      ..writeln('  String patch,')
+      ..writeln('  int major,')
+      ..writeln('  int minor,')
+      ..writeln('  int patch,')
       ..writeln('  List<String> preRelease,')
       ..writeln('  List<String> build')
       ..writeln('});');
diff --git a/lib/src/generator/version_generator_mixin.dart b/lib/src/generator/version_generator_mixin.dart
index ea80811..8de6ca0 100644
--- a/lib/src/generator/version_generator_mixin.dart
+++ b/lib/src/generator/version_generator_mixin.dart
@@ -27,14 +27,15 @@ mixin VersionGeneratorMixin on PubspecGenerator {
       '  // Canonicalized string representation of the version.\n'
       '  canonical: r\'${version.canonicalizedVersion}\',\n'
       '  // MAJOR version when you make incompatible API changes.\n'
-      '  // The major version number: "1" in "1.2.3".\n'
-      '  major: r\'${version.major}\',\n'
+      '  // The major version number: 1 in "1.2.3".\n'
+      '  major: ${version.major},\n'
       '  // MINOR version when you add functionality\n'
       '  // in a backward compatible manner.\n'
-      '  // The minor version number: "2" in "1.2.3".\n'
-      '  minor: r\'${version.minor}\',\n'
-      '  // The patch version number: "3" in "1.2.3".\n'
-      '  patch: r\'${version.patch}\',\n'
+      '  // The minor version number: 2 in "1.2.3".\n'
+      '  minor: ${version.minor},\n'
+      '  // PATCH version when you make backward compatible bug fixes.\n'
+      '  // The patch version number: 3 in "1.2.3".\n'
+      '  patch: ${version.patch},\n'
       '  // The pre-release identifier: "foo" in "1.2.3-foo".\n'
       '  preRelease: <String>[${_preRelease(version.preRelease)}],\n'
       '  // The build identifier: "foo" in "1.2.3+foo".\n'