diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6a71d7..75346db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 All notable changes to `@sharp-api/client` are documented here.
 
-## 0.5.0 — 2026-06-02
+## 0.4.0 — 2026-06-02
 
 ### Changed
 
@@ -13,8 +13,6 @@ All notable changes to `@sharp-api/client` are documented here.
   `wire_received_at` were never modeled by this SDK, so no type change is
   needed. (SHA-1048)
 
-## 0.4.0 — 2026-05-31
-
 ### Added
 
 - `NormalizedOdds.is_active` (boolean). `false` indicates the market is
diff --git a/package.json b/package.json
index 32025cb..dd6a09b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sharp-api/client",
-  "version": "0.5.0",
+  "version": "0.4.0",
   "description": "Official TypeScript/JavaScript client for the SharpAPI real-time sports betting odds API",
   "type": "module",
   "main": "./dist/index.cjs",