diff --git a/packages/mergebot/package.json b/packages/mergebot/package.json
index 8ba76ee640..edb786a668 100644
--- a/packages/mergebot/package.json
+++ b/packages/mergebot/package.json
@@ -40,7 +40,7 @@
     "esbuild": "^0.25.0",
     "jest-file-snapshot": "^0.7.0",
     "rimraf": "^5.0.10",
-    "seroval": "^1.1.1",
+    "seroval": "^1.4.1",
     "typescript": "^5.9.2"
   },
   "scripts": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 521c7cefb9..47f9a3b0cb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -345,8 +345,8 @@ importers:
         specifier: ^5.0.10
         version: 5.0.10
       seroval:
-        specifier: ^1.1.1
-        version: 1.3.2
+        specifier: ^1.4.1
+        version: 1.4.1
       typescript:
         specifier: ^5.9.2
         version: 5.9.3
@@ -4476,8 +4476,8 @@ packages:
     resolution: {integrity: sha512-8I8TjW5KMOKsZQTvoxjuSIa7foAwPWGOts+6o7sgjz41/qMD9VQHEDxi6PBvK2l0MXUmqZyNpUK+T2tQaaElvw==}
     engines: {node: '>=10'}
 
-  seroval@1.3.2:
-    resolution: {integrity: sha512-RbcPH1n5cfwKrru7v7+zrZvjLurgHhGyso3HTyGtRivGWgYjbOmGuivCQaORNELjNONoK35nj28EoWul9sb1zQ==}
+  seroval@1.4.1:
+    resolution: {integrity: sha512-9GOc+8T6LN4aByLN75uRvMbrwY5RDBW6lSlknsY4LEa9ZmWcxKcRe1G/Q3HZXjltxMHTrStnvrwAICxZrhldtg==}
     engines: {node: '>=10'}
 
   set-blocking@2.0.0:
@@ -4779,10 +4779,12 @@ packages:
   tar@6.2.1:
     resolution: {integrity: sha512-DZ4yORTwrbTj/7MZYq2w+/ZFdI6OZ/f9SFHR+71gIVUZhOQPHzVCLpvRnPgyaMpfWxxk/4ONva3GQSyNIKRv6A==}
     engines: {node: '>=10'}
+    deprecated: Old versions of tar are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exhorbitant rates) by contacting i@izs.me
 
   tar@7.5.1:
     resolution: {integrity: sha512-nlGpxf+hv0v7GkWBK2V9spgactGOp0qvfWRxUMjqHyzrt3SgwE48DIv/FhqPHJYLHpgW1opq3nERbz5Anq7n1g==}
     engines: {node: '>=18'}
+    deprecated: Old versions of tar are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exhorbitant rates) by contacting i@izs.me
 
   term-size@2.2.1:
     resolution: {integrity: sha512-wK0Ri4fOGjv/XPy8SBHZChl8CM7uMc5VML7SqiQ0zG7+J5Vr+RMQDoHa2CNT6KHUnTGIXH34UDMkPzAUyapBZg==}
@@ -10097,7 +10099,7 @@ snapshots:
     dependencies:
       type-fest: 0.13.1
 
-  seroval@1.3.2: {}
+  seroval@1.4.1: {}
 
   set-blocking@2.0.0:
     optional: true