diff --git a/packages/share/CHANGELOG.md b/packages/share/CHANGELOG.md
index 86906bbd56be..8a3806209c1c 100644
--- a/packages/share/CHANGELOG.md
+++ b/packages/share/CHANGELOG.md
@@ -1,7 +1,3 @@
-## 2.0.0-nullsafety
-
-* Migrate to null safety.
-
 ## 0.6.5+5
 
 * Update Flutter SDK constraint.
diff --git a/packages/share/lib/share.dart b/packages/share/lib/share.dart
index f15566714857..4a3ff6f1de09 100644
--- a/packages/share/lib/share.dart
+++ b/packages/share/lib/share.dart
@@ -33,8 +33,8 @@ class Share {
   /// from [MethodChannel].
   static Future<void> share(
     String text, {
-    String? subject,
-    Rect? sharePositionOrigin,
+    String subject,
+    Rect sharePositionOrigin,
   }) {
     assert(text != null);
     assert(text.isNotEmpty);
@@ -67,10 +67,10 @@ class Share {
   /// from [MethodChannel].
   static Future<void> shareFiles(
     List<String> paths, {
-    List<String>? mimeTypes,
-    String? subject,
-    String? text,
-    Rect? sharePositionOrigin,
+    List<String> mimeTypes,
+    String subject,
+    String text,
+    Rect sharePositionOrigin,
   }) {
     assert(paths != null);
     assert(paths.isNotEmpty);
diff --git a/packages/share/pubspec.yaml b/packages/share/pubspec.yaml
index 69d0fdbd5eb8..23644d290473 100644
--- a/packages/share/pubspec.yaml
+++ b/packages/share/pubspec.yaml
@@ -2,7 +2,10 @@ name: share
 description: Flutter plugin for sharing content via the platform share UI, using
   the ACTION_SEND intent on Android and UIActivityViewController on iOS.
 homepage: https://github.com/flutter/plugins/tree/master/packages/share
-version: 2.0.0-nullsafety
+# 0.6.y+z is compatible with 1.0.0, if you land a breaking change bump
+# the version to 2.0.0.
+# See more details: https://github.com/flutter/flutter/wiki/Package-migration-to-1.0.0
+version: 0.6.5+5
 
 flutter:
   plugin:
@@ -14,20 +17,20 @@ flutter:
         pluginClass: FLTSharePlugin
 
 dependencies:
-  meta: ^1.3.0-nullsafety.6
-  mime: ^1.0.0-nullsafety.0
+  meta: ^1.0.5
+  mime: ^0.9.7
   flutter:
     sdk: flutter
 
 dev_dependencies:
-  test: ^1.16.0-nullsafety.13
-  mockito: ^4.1.3
+  test: ^1.3.0
+  mockito: ^3.0.0
   flutter_test:
     sdk: flutter
   integration_test:
     path: ../integration_test
-  pedantic: ^1.10.0-nullsafety.3
+  pedantic: ^1.8.0
 
 environment:
+  sdk: ">=2.1.0 <3.0.0"
   flutter: ">=1.12.13+hotfix.5"
-  sdk: ">=2.12.0-0 <3.0.0"
diff --git a/packages/share/test/share_test.dart b/packages/share/test/share_test.dart
index fa9f980beae3..e862d1baf579 100644
--- a/packages/share/test/share_test.dart
+++ b/packages/share/test/share_test.dart
@@ -15,7 +15,7 @@ import 'package:flutter/services.dart';
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
 
-  late MockMethodChannel mockChannel;
+  MockMethodChannel mockChannel;
 
   setUp(() {
     mockChannel = MockMethodChannel();
@@ -26,6 +26,14 @@ void main() {
     });
   });
 
+  test('sharing null fails', () {
+    expect(
+      () => Share.share(null),
+      throwsA(const TypeMatcher<AssertionError>()),
+    );
+    verifyZeroInteractions(mockChannel);
+  });
+
   test('sharing empty fails', () {
     expect(
       () => Share.share(''),
@@ -50,6 +58,14 @@ void main() {
     }));
   });
 
+  test('sharing null file fails', () {
+    expect(
+      () => Share.shareFiles([null]),
+      throwsA(const TypeMatcher<AssertionError>()),
+    );
+    verifyZeroInteractions(mockChannel);
+  });
+
   test('sharing empty file fails', () {
     expect(
       () => Share.shareFiles(['']),
diff --git a/script/nnbd_plugins.sh b/script/nnbd_plugins.sh
index 0cab28abe2ab..97354a36a038 100644
--- a/script/nnbd_plugins.sh
+++ b/script/nnbd_plugins.sh
@@ -14,7 +14,6 @@ readonly NNBD_PLUGINS_LIST=(
   "local_auth"
   "path_provider"
   "plugin_platform_interface"
-  "share"
   "url_launcher"
   "video_player"
   "webview_flutter"