diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72027c3..822bab1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2.5.1 - 2020-09-18 [CRITICAL]
+
+### Fixed
+- Fix a potential security vulnerability where the last-created voucher could be redeemed by any user.
+- Replace hard coded currency with order currency. (thanks @yingban).
+
 ## 2.5.0 - 2020-08-31
 
 ### Added
diff --git a/composer.json b/composer.json
index 21da5bb..86f0e7b 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "verbb/gift-voucher",
     "description": "Plugin for Craft Commerce implementing gift vouchers.",
     "type": "craft-plugin",
-    "version": "2.5.0",
+    "version": "2.5.1",
     "keywords": [
         "craft",
         "cms",