diff --git a/CHANGELOG.json b/CHANGELOG.json
index a9e3389..84b9dd2 100644
--- a/CHANGELOG.json
+++ b/CHANGELOG.json
@@ -1,6 +1,21 @@
 {
   "name": "@microsoft/globe",
   "entries": [
+    {
+      "date": "Wed, 01 Jul 2026 08:06:39 GMT",
+      "version": "4.5.1",
+      "tag": "@microsoft/globe_v4.5.1",
+      "comments": {
+        "patch": [
+          {
+            "author": "ligia.e.popescu@gmail.com",
+            "package": "@microsoft/globe",
+            "commit": "1ef28da886861f618b4aef487d451f63446c9bdc",
+            "comment": "Update dev dependencies (vitest 4, rollup, vite, lodash, flatted) and fix Vitest 4.x Date mocks"
+          }
+        ]
+      }
+    },
     {
       "date": "Tue, 02 Dec 2025 18:44:44 GMT",
       "version": "4.5.0",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ce0ea7..81cc990 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,17 @@
 # Change Log - @microsoft/globe
 
-<!-- This log was last generated on Tue, 02 Dec 2025 18:44:44 GMT and should not be manually modified. -->
+<!-- This log was last generated on Wed, 01 Jul 2026 08:06:39 GMT and should not be manually modified. -->
 
 <!-- Start content -->
 
+## 4.5.1
+
+Wed, 01 Jul 2026 08:06:39 GMT
+
+### Patches
+
+- Update dev dependencies (vitest 4, rollup, vite, lodash, flatted) and fix Vitest 4.x Date mocks (ligia.e.popescu@gmail.com)
+
 ## 4.5.0
 
 Tue, 02 Dec 2025 18:44:44 GMT
diff --git a/package.json b/package.json
index 3e7b435..2e188f6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@microsoft/globe",
-  "version": "4.5.0",
+  "version": "4.5.1",
   "description": "Globalization Service",
   "author": "Microsoft",
   "license": "MIT",