diff --git a/lib/snapshot/pubspec.yaml b/lib/snapshot/pubspec.yaml
index 54585c8caccc8..5e4d2c6a083be 100644
--- a/lib/snapshot/pubspec.yaml
+++ b/lib/snapshot/pubspec.yaml
@@ -3,3 +3,6 @@
 # found in the LICENSE file.
 
 # This file is needed by Fuchsia's dart_library template.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
diff --git a/shell/platform/fuchsia/dart-pkg/fuchsia/pubspec.yaml b/shell/platform/fuchsia/dart-pkg/fuchsia/pubspec.yaml
index 5e8ae01a4e1f8..4fb6995fba9c9 100644
--- a/shell/platform/fuchsia/dart-pkg/fuchsia/pubspec.yaml
+++ b/shell/platform/fuchsia/dart-pkg/fuchsia/pubspec.yaml
@@ -1,3 +1,6 @@
 # Copyright 2013 The Flutter Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
diff --git a/shell/platform/fuchsia/dart-pkg/zircon/pubspec.yaml b/shell/platform/fuchsia/dart-pkg/zircon/pubspec.yaml
index 5e8ae01a4e1f8..4fb6995fba9c9 100644
--- a/shell/platform/fuchsia/dart-pkg/zircon/pubspec.yaml
+++ b/shell/platform/fuchsia/dart-pkg/zircon/pubspec.yaml
@@ -1,3 +1,6 @@
 # Copyright 2013 The Flutter Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
diff --git a/shell/platform/fuchsia/dart_runner/embedder/pubspec.yaml b/shell/platform/fuchsia/dart_runner/embedder/pubspec.yaml
index eaea68b2696af..fc92b573addcb 100644
--- a/shell/platform/fuchsia/dart_runner/embedder/pubspec.yaml
+++ b/shell/platform/fuchsia/dart_runner/embedder/pubspec.yaml
@@ -4,3 +4,7 @@
 
 # The presence of this file is necessary in order to use the dart_library
 # template in BUILD.gn.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
+
diff --git a/shell/platform/fuchsia/dart_runner/vmservice/pubspec.yaml b/shell/platform/fuchsia/dart_runner/vmservice/pubspec.yaml
index 5e8ae01a4e1f8..4c6b70671d6c0 100644
--- a/shell/platform/fuchsia/dart_runner/vmservice/pubspec.yaml
+++ b/shell/platform/fuchsia/dart_runner/vmservice/pubspec.yaml
@@ -1,3 +1,7 @@
 # Copyright 2013 The Flutter Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
+
diff --git a/shell/platform/fuchsia/flutter/kernel/pubspec.yaml b/shell/platform/fuchsia/flutter/kernel/pubspec.yaml
index e69de29bb2d1d..4fb6995fba9c9 100644
--- a/shell/platform/fuchsia/flutter/kernel/pubspec.yaml
+++ b/shell/platform/fuchsia/flutter/kernel/pubspec.yaml
@@ -0,0 +1,6 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+environment:
+  sdk: '>=2.11.0 <3.0.0'
diff --git a/shell/platform/fuchsia/runtime/dart/profiler_symbols/pubspec.yaml b/shell/platform/fuchsia/runtime/dart/profiler_symbols/pubspec.yaml
index 8939a55d12c39..3799c6c944f74 100644
--- a/shell/platform/fuchsia/runtime/dart/profiler_symbols/pubspec.yaml
+++ b/shell/platform/fuchsia/runtime/dart/profiler_symbols/pubspec.yaml
@@ -3,6 +3,8 @@
 # found in the LICENSE file.
 
 name: profiler_symbols
+environment:
+  sdk: '>=2.11.0 <3.0.0'
 version: 0
 description: Extracts a minimal symbols table for the Dart VM profiler
 author: Dart Team <misc@dartlang.org>
diff --git a/testing/smoke_test_failure/pubspec.yaml b/testing/smoke_test_failure/pubspec.yaml
index 9eb330ef6f4e7..52402200f45dd 100644
--- a/testing/smoke_test_failure/pubspec.yaml
+++ b/testing/smoke_test_failure/pubspec.yaml
@@ -1,4 +1,6 @@
 name: smoke_test_failure
+environment:
+  sdk: '>=2.11.0 <3.0.0'
 dependencies:
   test: 1.3.0
   path: 1.6.2
diff --git a/testing/symbols/pubspec.yaml b/testing/symbols/pubspec.yaml
index a45a4a0b79afb..eb59cfa981606 100644
--- a/testing/symbols/pubspec.yaml
+++ b/testing/symbols/pubspec.yaml
@@ -1,4 +1,6 @@
 name: verify_exported
+environment:
+  sdk: '>=2.11.0 <3.0.0'
 dependencies:
   path: 1.6.2
   collection: 1.14.11
diff --git a/tools/android_lint/pubspec.yaml b/tools/android_lint/pubspec.yaml
index b27131c37c920..1fb8a75441c74 100644
--- a/tools/android_lint/pubspec.yaml
+++ b/tools/android_lint/pubspec.yaml
@@ -1,4 +1,7 @@
 name: android_lint
+environment:
+  sdk: '>=2.12.0-0.0.dev <3.0.0'
+
 dependencies:
   args: 1.5.0
   path: ^1.6.2
diff --git a/web_sdk/pubspec.yaml b/web_sdk/pubspec.yaml
index f25f7ccb2f953..ad2b335e8b1f1 100644
--- a/web_sdk/pubspec.yaml
+++ b/web_sdk/pubspec.yaml
@@ -1,5 +1,7 @@
 name: web_sdk_tests
 author: Flutter Authors <flutter-dev@googlegroups.com>
+environment:
+  sdk: '>=2.11.0 <3.0.0'
 
 dev_dependencies:
   analyzer: ^0.40.6