diff --git a/analysis_options.yaml b/analysis_options.yaml
index 2ea531761..85b95567f 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -89,7 +89,7 @@ linter:
     # - cascade_invocations # doesn't match the typical style of this repo
     - cast_nullable_to_non_nullable
     # - close_sinks # not reliable enough
-    # - collection_methods_unrelated_type # TODO(jsuya): Different from flutter/packages: temporary. Disabled to pass CI on Flutter 3.47.0; re-enable after fixing existing violations (https://github.com/flutter-tizen/plugins/issues/1089).
+    - collection_methods_unrelated_type
     - combinators_ordering
     # - comment_references # blocked on https://github.com/dart-lang/linter/issues/1142
     - conditional_uri_does_not_exist
diff --git a/packages/tizen_bundle/CHANGELOG.md b/packages/tizen_bundle/CHANGELOG.md
index 85d37e27e..8a8c31980 100644
--- a/packages/tizen_bundle/CHANGELOG.md
+++ b/packages/tizen_bundle/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.5
+
+* Fix `operator []` and `remove()` to not throw on non-String keys.
+
 ## 0.1.4
 
 * Update integration tests.
diff --git a/packages/tizen_bundle/example/integration_test/tizen_bundle_test.dart b/packages/tizen_bundle/example/integration_test/tizen_bundle_test.dart
index 705bf2173..5b4de2481 100644
--- a/packages/tizen_bundle/example/integration_test/tizen_bundle_test.dart
+++ b/packages/tizen_bundle/example/integration_test/tizen_bundle_test.dart
@@ -132,11 +132,13 @@ void main() {
       expect(bundle['nonExistentKey'], isNull);
     });
 
-    test('returns null when key is null', () async {
+    test('returns null when the key is not a String', () async {
       final Bundle bundle = Bundle();
       bundle['someKey'] = 'someValue';
-      // The implementation accepts Object? key and returns null for null.
-      expect(bundle[null], isNull);
+      // operator[] takes an Object?, so it must accept any key.
+      for (final Object? key in <Object?>[null, 42, true]) {
+        expect(bundle[key], isNull);
+      }
     });
 
     test('returns the correct value after key is overwritten', () async {
@@ -199,10 +201,13 @@ void main() {
   // remove()
   // ---------------------------------------------------------------------------
   group('remove()', () {
-    test('remove(null) is a no-op and does not throw', () async {
+    test('removing a key that is not a String is a no-op', () async {
       final Bundle bundle = Bundle();
       bundle['key'] = 'value';
-      expect(() => bundle.remove(null), returnsNormally);
+      // remove() takes an Object?, so it must accept any key.
+      for (final Object? key in <Object?>[null, 42, true]) {
+        expect(() => bundle.remove(key), returnsNormally);
+      }
       expect(bundle.length, 1);
     });
 
diff --git a/packages/tizen_bundle/lib/tizen_bundle.dart b/packages/tizen_bundle/lib/tizen_bundle.dart
index 68f2e2164..a72ae44a1 100644
--- a/packages/tizen_bundle/lib/tizen_bundle.dart
+++ b/packages/tizen_bundle/lib/tizen_bundle.dart
@@ -88,12 +88,12 @@ class Bundle extends MapMixin<String, Object> {
   /// The value for the given [key], or null if [key] is not in the bundle.
   @override
   Object? operator [](Object? key) {
-    if (key == null) {
+    if (key is! String) {
       return null;
     }
 
     Object? value;
-    final int type = _getType(key as String);
+    final int type = _getType(key);
     if (type == bundle_type.BUNDLE_TYPE_STR) {
       value = _getString(key);
     } else if (type == bundle_type.BUNDLE_TYPE_STR_ARRAY) {
@@ -131,13 +131,12 @@ class Bundle extends MapMixin<String, Object> {
   /// Removes [key] and its associated value, if present, from the bundle.
   @override
   void remove(Object? key) {
-    if (key == null) {
+    if (key is! String) {
       return;
     }
 
     final int ret = using((Arena arena) {
-      final String keyName = key as String;
-      return tizen.bundle_del(_handle, keyName.toNativeChar(allocator: arena));
+      return tizen.bundle_del(_handle, key.toNativeChar(allocator: arena));
     });
     if (ret != bundle_error_e.BUNDLE_ERROR_NONE &&
         ret != bundle_error_e.BUNDLE_ERROR_KEY_NOT_AVAILABLE) {
diff --git a/packages/tizen_bundle/pubspec.yaml b/packages/tizen_bundle/pubspec.yaml
index b1d626d53..cbe71d06f 100644
--- a/packages/tizen_bundle/pubspec.yaml
+++ b/packages/tizen_bundle/pubspec.yaml
@@ -2,7 +2,7 @@ name: tizen_bundle
 description: Tizen data bundle APIs.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/main/packages/tizen_bundle
-version: 0.1.4
+version: 0.1.5
 
 environment:
   sdk: ">=3.1.0 <4.0.0"