diff --git a/changelog.md b/changelog.md
index 06ae4ea..b30bd92 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,7 +1,7 @@
 Changelog
 =========
 
-0.9.0 (????-??-??)
+0.9.0 (2023-02-14)
 ------------------
 
 * This package now supports ESM and CommonJS modules.
diff --git a/package-lock.json b/package-lock.json
index fbaba2c..45c016d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@curveball/session",
-  "version": "0.8.1",
+  "version": "0.9.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@curveball/session",
-      "version": "0.8.1",
+      "version": "0.9.0",
       "license": "MIT",
       "dependencies": {
         "cookie": "^0.5.0"
diff --git a/package.json b/package.json
index 16ccbfb..a77623b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@curveball/session",
-  "version": "0.8.1",
+  "version": "0.9.0",
   "description": "Session storage using HTTP cookies",
   "type": "module",
   "exports": {