diff --git a/package.json b/package.json
index 00f22d2..0cf64f6 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "eslint-plugin-node": "^8.0.0",
     "eslint-plugin-prettier": "^3.0.0",
     "execa": "^1.0.0",
-    "get-port": "^4.2.0",
+    "get-port": "^5.0.0",
     "prettier": "^1.16.4",
     "qunit": "~2.9.2",
     "qunit-eslint": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 98d2918..41692a8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -611,9 +611,11 @@ functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
 
-get-port@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/get-port/-/get-port-4.2.0.tgz#e37368b1e863b7629c43c5a323625f95cf24b119"
+get-port@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/get-port/-/get-port-5.0.0.tgz#aa22b6b86fd926dd7884de3e23332c9f70c031a6"
+  dependencies:
+    type-fest "^0.3.0"
 
 get-stdin@^6.0.0:
   version "6.0.0"
@@ -1389,6 +1391,10 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type-fest@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.3.0.tgz#1eb4a83c4ee233afd59d4db3faef44fecee0e9a2"
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"