diff --git a/package-lock.json b/package-lock.json
index cc2b9f87..ee6ef545 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,7 @@
         "serve": "14.2.6",
         "ts-jest": "29.4.15",
         "ts-node": "10.9.2",
-        "tslib": "2.8.1",
+        "tslib": "2.9.1",
         "typedoc": "0.28.20",
         "typescript": "5.9.3"
       },
@@ -9390,10 +9390,11 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.8.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
-      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
-      "dev": true
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.9.1.tgz",
+      "integrity": "sha512-a4Ux9VKuIMHsOS7ENbEq6hK2ZGYIT27Rtl0E4eD9KqwxhKiQeMZE/9xb3IdYwWaSOyIBQLExhQgXDTYoiCxnWA==",
+      "dev": true,
+      "license": "0BSD"
     },
     "node_modules/type-check": {
       "version": "0.4.0",
diff --git a/package.json b/package.json
index ce775d71..7d52bdf6 100644
--- a/package.json
+++ b/package.json
@@ -117,7 +117,7 @@
     "serve": "14.2.6",
     "ts-jest": "29.4.15",
     "ts-node": "10.9.2",
-    "tslib": "2.8.1",
+    "tslib": "2.9.1",
     "typedoc": "0.28.20",
     "typescript": "5.9.3"
   },