diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c64b66..e4a9f72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.2
+
+* Declare compatibility with `string_scanner` 1.0.0.
+
 ## 1.0.1
 
 * Fix all strong mode warnings.
diff --git a/pubspec.yaml b/pubspec.yaml
index f3960d3..3678e31 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: boolean_selector
-version: 1.0.1
+version: 1.0.2
 description: A flexible syntax for boolean expressions.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/boolean_selector
@@ -10,7 +10,7 @@
 dependencies:
   collection: '^1.5.0'
   source_span: '^1.0.0'
-  string_scanner: '^0.1.1'
+  string_scanner: '>=0.1.1 <2.0.0'
 
 dev_dependencies:
   test: '^0.12.0'