diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c99300..a16b333 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+### 2.1.2
+
+* Relax sdk upper bound constraint to  '<2.0.0' to allow 'edge' dart sdk use.
+
 ### 2.1.1
 
 * Bumped maximum Dart SDK version to 2.0.0-dev.infinity
diff --git a/pubspec.yaml b/pubspec.yaml
index f12e9f1..a841972 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: platform
-version: 2.1.1
+version: 2.1.2
 authors:
 - Todd Volkert <tvolkert@google.com>
 description: A pluggable, mockable platform abstraction for Dart.
@@ -9,4 +9,4 @@
   test: ^0.12.10
 
 environment:
-  sdk: '>=1.24.0-dev.0.0 <2.0.0-dev.infinity '
+  sdk: '>=1.24.0-dev.0.0 <2.0.0'