diff --git a/Rnwood.Smtp4dev/ClientApp/package-lock.json b/Rnwood.Smtp4dev/ClientApp/package-lock.json
index 7b5a21149..54a2700eb 100644
--- a/Rnwood.Smtp4dev/ClientApp/package-lock.json
+++ b/Rnwood.Smtp4dev/ClientApp/package-lock.json
@@ -13726,9 +13726,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.2.tgz",
-      "integrity": "sha512-thGloWsGH3SOxv1SoY7QojKi0tc+8FnOmiarEGMbd/lar7QOEd3hvlx3Fp5y6FlDUGl9L+pd4n2e+oToGMmhRQ==",
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz",
+      "integrity": "sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==",
       "dev": true
     },
     "uglify-js": {
diff --git a/Rnwood.Smtp4dev/ClientApp/package.json b/Rnwood.Smtp4dev/ClientApp/package.json
index d3429dd79..a2f60b1c0 100644
--- a/Rnwood.Smtp4dev/ClientApp/package.json
+++ b/Rnwood.Smtp4dev/ClientApp/package.json
@@ -32,7 +32,7 @@
     "moment": "^2.29.1",
     "srcdoc-polyfill": "^1.0.0",
     "ts-debounce": "^2.1.0",
-    "typescript": "~4.1.2",
+    "typescript": "~4.2.3",
     "vue-router": "^3.4.9",
     "vue-template-compiler": "^2.6.12",
     "vue2-ace-editor": "0.0.15",