diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index e1fb8b86592..252b0bc1143 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -1,21 +1,21 @@
 name: analyzer
-version: 0.30.0+2
+version: 0.31.0-alpha.0
 author: Dart Team <misc@dartlang.org>
 description: Static analyzer for Dart.
 homepage: https://github.com/dart-lang/sdk/tree/master/pkg/analyzer
 environment:
-  sdk: '>=1.20.0 <2.0.0'
+  sdk: '>=1.20.0 <2.0.0-dev.infinity'
 dependencies:
   args: '>=0.12.1 <2.0.0'
   charcode: ^1.1.0
   collection: ^1.10.1
   convert: ^2.0.0
   crypto: '>=1.1.1 <3.0.0'
-  front_end: 0.1.0-alpha.4
+  front_end: 0.1.0-alpha.5
   glob: ^1.0.3
   html: '>=0.12.0 <1.14.0'
   isolate: '>=0.2.2 <2.0.0'
-  kernel: 0.3.0-alpha.1
+  kernel: 0.3.0-alpha.2
   meta: ^1.0.2
   package_config: '>=0.1.5 <2.0.0'
   path: '>=0.9.0 <2.0.0'
diff --git a/pkg/front_end/pubspec.yaml b/pkg/front_end/pubspec.yaml
index c084626badd..f05e31efcee 100644
--- a/pkg/front_end/pubspec.yaml
+++ b/pkg/front_end/pubspec.yaml
@@ -1,12 +1,12 @@
 name: front_end
-version: 0.1.0-alpha.4
+version: 0.1.0-alpha.5
 author: Dart Team <misc@dartlang.org>
 description: Front end for compilation of Dart code.
 homepage: https://github.com/dart-lang/sdk/tree/master/pkg/front_end
 environment:
-  sdk: '>=1.12.0 <2.0.0'
+  sdk: '>=1.12.0 <2.0.0-dev.infinity'
 dependencies:
-  kernel: 0.3.0-alpha.1
+  kernel: 0.3.0-alpha.2
   path: '^1.3.9'
   source_span: '^1.2.3'
 dev_dependencies:
diff --git a/pkg/kernel/pubspec.yaml b/pkg/kernel/pubspec.yaml
index 84e28dfad1e..cd63b55be56 100644
--- a/pkg/kernel/pubspec.yaml
+++ b/pkg/kernel/pubspec.yaml
@@ -1,18 +1,18 @@
 name: kernel
-version: 0.3.0-alpha.1
+version: 0.3.0-alpha.2
 author: Dart Team <misc@dartlang.org>
 description: Dart IR (Intermediate Representation)
 homepage: https://github.com/dart-lang/kernel
 environment:
-  sdk: ">=1.8.0"
+  sdk: ">=1.8.0 <2.0.0-dev.infinity"
 dependencies:
   path: ^1.3.9
   args: ^0.13.4
   logging: ^0.11.2
   package_config: ^1.0.0
 dev_dependencies:
-  analyzer: ^0.30.0
-  front_end: 0.1.0-alpha.4
+  analyzer: '>=0.30.0 <0.32.0'
+  front_end: 0.1.0-alpha.5
   test: ^0.12.15+6
   stack_trace: ^1.6.6
   ansicolor: ^0.0.9