| Index: packages/barback/pubspec.yaml
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| diff --git a/packages/barback/pubspec.yaml b/packages/barback/pubspec.yaml
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| index 7d239af1ae752c062d81ee2ecea71e08bdb08a15..d04ba6bab16a54593a9c6aed306c7b49adbef9f2 100644
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| --- a/packages/barback/pubspec.yaml
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| +++ b/packages/barback/pubspec.yaml
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| @@ -7,7 +7,7 @@ name: barback
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|  #
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|  # When the minor or patch version of this is upgraded, you *must* update that
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|  # version constraint in pub to stay in sync with this.
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| -version: 0.15.2+11
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| +version: 0.15.2+12
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|  
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|  author: "Dart Team <misc@dartlang.org>"
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|  homepage: http://github.com/dart-lang/barback
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| @@ -22,7 +22,7 @@ description: >
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|    Runs transforms asynchronously and in parallel when possible to maximize
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|    responsiveness.
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|  dependencies:
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| -  async: "^1.10.0"
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| +  async: ">=1.10.0 <3.0.0"
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|    path: ">=0.9.0 <2.0.0"
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|    pool: ">=1.0.0 <2.0.0"
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|    source_span: ">=1.0.0 <2.0.0"
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| 
 |