webpack · bjohansebas · Jan 12, 2026 · Jan 5, 2026 · Jan 12, 2026
diff --git a/lib/Server.js b/lib/Server.js
@@ -1241,10 +1241,14 @@ class Server {
           const selfsigned = require("selfsigned");
 
           const attributes = [{ name: "commonName", value: "localhost" }];
-          const pems = selfsigned.generate(attributes, {
+          const notBeforeDate = new Date();
+          const notAfterDate = new Date();
+          notAfterDate.setDate(notAfterDate.getDate() + 30);
+          const pems = await selfsigned.generate(attributes, {
             algorithm: "sha256",
-            days: 30,
             keySize: 2048,
+            notBeforeDate,
+            notAfterDate,
             extensions: [
               {
                 name: "basicConstraints",

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -66,7 +66,7 @@
     "open": "^10.0.3",
     "p-retry": "^6.2.0",
     "schema-utils": "^4.2.0",
-    "selfsigned": "^2.4.1",
+    "selfsigned": "^5.4.0",
     "serve-index": "^1.9.1",
     "sockjs": "^0.3.24",
     "spdy": "^4.0.2",