diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f439d2..88b0ff8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 3.1.1
+
+- `parseBool`:
+ - Improve possible valid values.
+
 ## 3.1.0
 
 - Migrate to `lints`:
diff --git a/lib/src/math.dart b/lib/src/math.dart
index d9abda2..d691018 100644
--- a/lib/src/math.dart
+++ b/lib/src/math.dart
@@ -388,7 +388,7 @@ num? parseNum(Object? v, [num? def]) {
 ///
 /// if [v] is [num]: true when [v > 0]
 ///
-/// if [v] is [String]: true when [v == "true"|"yes"|"ok"|"1"|"y"|"s"|"t"|"+"
+/// if [v] is [String]: true when [v == "true"|"yes"|"ok"|"on"|"enabled"|"1"|"y"|"s"|"t"|"+"
 ///
 /// [def] The default value if [v] is invalid.
 bool? parseBool(Object? v, [bool? def]) {
@@ -412,6 +412,11 @@ bool? parseBool(Object? v, [bool? def]) {
   return s == 'true' ||
       s == 'yes' ||
       s == 'ok' ||
+      s == 'on' ||
+      s == 'enabled' ||
+      s == 'active' ||
+      s == 'activated' ||
+      s == 'selected' ||
       s == '1' ||
       s == 'y' ||
       s == 's' ||
diff --git a/pubspec.yaml b/pubspec.yaml
index 48b7b98..f09f538 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: swiss_knife
 description: Dart Useful Tools - collections, math, date, uri, json, events, resources, regexp, etc...
-version: 3.1.0
+version: 3.1.1
 homepage: https://github.com/gmpassos/swiss_knife
 
 environment:
diff --git a/test/swiss_knife_test.dart b/test/swiss_knife_test.dart
index 34ac520..6eb4d5a 100644
--- a/test/swiss_knife_test.dart
+++ b/test/swiss_knife_test.dart
@@ -347,6 +347,41 @@ void main() {
       expect(Math.mean([2, 4]), equals(3));
     });
 
+    test('parseBool', () {
+      expect(parseBool(true), isTrue);
+      expect(parseBool(false), isFalse);
+
+      expect(parseBool('true'), isTrue);
+      expect(parseBool('false'), isFalse);
+
+      expect(parseBool(1), isTrue);
+      expect(parseBool(0), isFalse);
+
+      expect(parseBool('1'), isTrue);
+      expect(parseBool('0'), isFalse);
+
+      expect(parseBool('yes'), isTrue);
+      expect(parseBool('no'), isFalse);
+
+      expect(parseBool('ok'), isTrue);
+      expect(parseBool('no'), isFalse);
+
+      expect(parseBool('on'), isTrue);
+      expect(parseBool('off'), isFalse);
+
+      expect(parseBool('On'), isTrue);
+      expect(parseBool('Off'), isFalse);
+
+      expect(parseBool('enabled'), isTrue);
+      expect(parseBool('disabled'), isFalse);
+
+      expect(parseBool('active'), isTrue);
+      expect(parseBool('disabled'), isFalse);
+
+      expect(parseBool('activated'), isTrue);
+      expect(parseBool('deactivated'), isFalse);
+    });
+
     test('parseNum', () {
       expect(parseNum(0), equals(0));
       expect(parseNum(1), equals(1));