diff --git a/package-lock.json b/package-lock.json
index d3d544a..e8f50af 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3975,9 +3975,9 @@
       }
     },
     "es-dev-server": {
-      "version": "1.54.0",
-      "resolved": "https://registry.npmjs.org/es-dev-server/-/es-dev-server-1.54.0.tgz",
-      "integrity": "sha512-J5IViGAdudO8hD4Z2BVU0t5MqOmEIQlNFxYddHJ8QqrcyD/Q3u95VMf8End7/eqDMUizeWtae2h21/P4RRq8lw==",
+      "version": "1.55.0",
+      "resolved": "https://registry.npmjs.org/es-dev-server/-/es-dev-server-1.55.0.tgz",
+      "integrity": "sha512-D4be5MVGBDw2/OO79xCTw1qqMbttao8SovhRelhUQ7+dFaInF/dC+so6vJKuuTFvVRpSVXF320F/0rMJ8R5FcA==",
       "dev": true,
       "requires": {
         "@babel/core": "^7.9.0",
@@ -6526,9 +6526,9 @@
       }
     },
     "koa": {
-      "version": "2.12.0",
-      "resolved": "https://registry.npmjs.org/koa/-/koa-2.12.0.tgz",
-      "integrity": "sha512-WlUBj6PXoVhjI5ljMmlyK+eqkbVFW5XQu8twz6bd4WM2E67IwKgPMu5wIFXGxAsZT7sW5xAB54KhY8WAEkLPug==",
+      "version": "2.12.1",
+      "resolved": "https://registry.npmjs.org/koa/-/koa-2.12.1.tgz",
+      "integrity": "sha512-NuYVKjnBxeEe19VljPO9yNcaKKVrMagcax3jjzZtOlxRY2nThWKQqgnI3Pr1OG7mFtvySoDRixoUWZIt6R9C3A==",
       "dev": true,
       "requires": {
         "accepts": "^1.3.5",
diff --git a/package.json b/package.json
index 2e0257f..e8a2f85 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "@open-wc/building-rollup": "^1.3.1",
     "rimraf": "^3.0.2",
     "rollup": "^2.13.1",
-    "es-dev-server": "^1.54.0"
+    "es-dev-server": "^1.55.0"
   },
   "eslintConfig": {
     "extends": [