Update version
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17f6f13..8dfdd4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.13.9-dev
+## 0.13.9 - 2020-03-09
 
 * Don't crash on empty JSON input files.
 * Loosen the dependency on the `vm_service` package from `>=1.0.0 <4.0.0` to
diff --git a/pubspec.yaml b/pubspec.yaml
index eac0da0..8c5ff32 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: coverage
-version: 0.13.0-dev
+version: 0.13.9
 description: Coverage data manipulation and formatting
 homepage: https://github.com/dart-lang/coverage