diff --git a/.contractual/changesets/add-vaccinated-field.md b/.contractual/changesets/add-vaccinated-field.md
deleted file mode 100644
index 75a42c4..0000000
--- a/.contractual/changesets/add-vaccinated-field.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-"petstore": minor
----
-
-## petstore
-
-- **[minor]** add optional vaccinated field to track pet vaccination status
diff --git a/.contractual/snapshots/petstore.yaml b/.contractual/snapshots/petstore.yaml
index eabc2e7..660fe9d 100644
--- a/.contractual/snapshots/petstore.yaml
+++ b/.contractual/snapshots/petstore.yaml
@@ -144,6 +144,9 @@ components:
           type: string
           pattern: '^[0-9]{15}$'
           description: 15-digit microchip ID (optional)
+        vaccinated:
+          type: boolean
+          description: Whether the pet is vaccinated (optional)
         status:
           type: string
           enum:
diff --git a/.contractual/versions.json b/.contractual/versions.json
index 46afb34..f136fc7 100644
--- a/.contractual/versions.json
+++ b/.contractual/versions.json
@@ -1,6 +1,6 @@
 {
   "petstore": {
-    "version": "2.1.0",
-    "released": "2026-03-28T17:48:50.734Z"
+    "version": "2.2.0",
+    "released": "2026-03-29T06:49:17.760Z"
   }
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5991c2..81eb566 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## [petstore] v2.2.0 - 2026-03-29
+
+- **[minor]** add optional vaccinated field to track pet vaccination status
+
 ## [petstore] v2.1.0 - 2026-03-28
 
 - **[minor]** add optional microchipId field to Pet schema for tracking pet microchips