diff --git a/package-lock.json b/package-lock.json
index a8929c1584..cb77938384 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "@lit-labs/analyzer": "^0.14.0",
         "@rollup/plugin-multi-entry": "^6.0.1",
         "@rollup/plugin-node-resolve": "^15.2.3",
-        "@rollup/plugin-terser": "^0.4.4",
+        "@rollup/plugin-terser": "^1.0.0",
         "@types/jasmine": "^4.0.3",
         "@types/node": "^24.10.1",
         "@web/test-runner": "^0.18.2",
@@ -1972,18 +1972,18 @@
       }
     },
     "node_modules/@rollup/plugin-terser": {
-      "version": "0.4.4",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-terser/-/plugin-terser-0.4.4.tgz",
-      "integrity": "sha512-XHeJC5Bgvs8LfukDwWZp7yeqin6ns8RTl2B9avbejt6tZqsqvVoWI7ZTQrcNsfKEDWBTnTxM8nMDkO2IFFbd0A==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-terser/-/plugin-terser-1.0.0.tgz",
+      "integrity": "sha512-FnCxhTBx6bMOYQrar6C8h3scPt8/JwIzw3+AJ2K++6guogH5fYaIFia+zZuhqv0eo1RN7W1Pz630SyvLbDjhtQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "serialize-javascript": "^6.0.1",
+        "serialize-javascript": "^7.0.3",
         "smob": "^1.0.0",
         "terser": "^5.17.4"
       },
       "engines": {
-        "node": ">=14.0.0"
+        "node": ">=20.0.0"
       },
       "peerDependencies": {
         "rollup": "^2.0.0||^3.0.0||^4.0.0"
@@ -8310,16 +8310,6 @@
         }
       ]
     },
-    "node_modules/randombytes": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
-      "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "safe-buffer": "^5.1.0"
-      }
-    },
     "node_modules/raw-body": {
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.2.tgz",
@@ -8709,13 +8699,13 @@
       "dev": true
     },
     "node_modules/serialize-javascript": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-6.0.2.tgz",
-      "integrity": "sha512-Saa1xPByTTq2gdeFZYLLo+RFE35NHZkAbqZeWNd3BpzppeVisAqpDjcp8dyf6uIvEqJRd46jemmyA4iFIeVk8g==",
+      "version": "7.0.5",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-7.0.5.tgz",
+      "integrity": "sha512-F4LcB0UqUl1zErq+1nYEEzSHJnIwb3AF2XWB94b+afhrekOUijwooAYqFyRbjYkm2PAKBabx6oYv/xDxNi8IBw==",
       "dev": true,
       "license": "BSD-3-Clause",
-      "dependencies": {
-        "randombytes": "^2.1.0"
+      "engines": {
+        "node": ">=20.0.0"
       }
     },
     "node_modules/setprototypeof": {
diff --git a/package.json b/package.json
index f32ffc9281..330fe12196 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "@lit-labs/analyzer": "^0.14.0",
     "@rollup/plugin-multi-entry": "^6.0.1",
     "@rollup/plugin-node-resolve": "^15.2.3",
-    "@rollup/plugin-terser": "^0.4.4",
+    "@rollup/plugin-terser": "^1.0.0",
     "@types/jasmine": "^4.0.3",
     "@types/node": "^24.10.1",
     "@web/test-runner": "^0.18.2",