diff --git a/package.json b/package.json
index f359f9d..29fb439 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "fluent-spec",
   "description": "Specification and documentation for Fluent",
-  "version": "0.8.0",
+  "version": "0.9.0",
   "private": true,
   "scripts": {
     "bench": "node --experimental-modules --harmony-async-iteration ./test/bench.mjs ./test/benchmarks/gecko_strings.ftl",
diff --git a/spec/CHANGELOG.md b/spec/CHANGELOG.md
index 7b681f4..b1b7143 100644
--- a/spec/CHANGELOG.md
+++ b/spec/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 0.9.0 (Unreleased)
+## 0.9.0 (March 26, 2019)
 
   - Flatten complex reference expressions. (#221)