diff --git a/package-lock.json b/package-lock.json
index 6a385329..4ae9bc81 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2943,12 +2943,6 @@
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-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
-      "integrity": "sha1-U0uQM8AiyVecVro7Plpcqvu2UOE=",
-      "dev": true
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@@ -3923,12 +3917,6 @@
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-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-1.2.0.tgz",
-      "integrity": "sha1-HIaZHYFq0eUEdQ5zh0Ik7PO+xQg=",
-      "dev": true
-    },
     "execa": {
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       "resolved": "https://registry.npmjs.org/execa/-/execa-5.0.0.tgz",
@@ -4549,12 +4537,6 @@
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       "dev": true
     },
-    "immutable": {
-      "version": "3.8.2",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.2.tgz",
-      "integrity": "sha1-wkOZUUVbs5kT2vKBN28VMOEErfM=",
-      "dev": true
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@@ -4913,16 +4895,15 @@
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-      "resolved": "https://registry.npmjs.org/localhost/-/localhost-0.3.0.tgz",
-      "integrity": "sha512-ZRbpZ21HadXnJR9+zpweVqNdmuLkTevvay1OHQH6RwmJqgvKDXlYzYHYsP2wnNPj+BxHENPEihnZ5VCYtPTQ0A==",
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/localhost/-/localhost-0.3.4.tgz",
+      "integrity": "sha512-S55ua2w77A03mcrXPSzrqYy7d+Uz9/U08i6aSx/zMHasUcu6thhCtIfXghKNyORDYPwdBlMPgEpgprFkE1+cEg==",
       "dev": true,
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-        "finalhandler": "^1.1.0",
-        "optimist": "^0.6.1",
-        "optimistic": "0.0.3",
-        "portfinder": "^1.0.13",
-        "serve-static": "^1.13.1"
+        "finalhandler": "^1.1.2",
+        "minimist": "^1.2.5",
+        "portfinder": "^1.0.28",
+        "serve-static": "^1.14.1"
       }
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@@ -5607,42 +5588,6 @@
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-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "dev": true,
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.10",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=",
-          "dev": true
-        },
-        "wordwrap": {
-          "version": "0.0.3",
-          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
-          "dev": true
-        }
-      }
-    },
-    "optimistic": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/optimistic/-/optimistic-0.0.3.tgz",
-      "integrity": "sha1-e6LGfPtIKBpM6M+RmC42IgouEPE=",
-      "dev": true,
-      "requires": {
-        "bluebird": "^2.9.33",
-        "eventemitter3": "^1.1.1",
-        "immutable": "^3.7.4",
-        "inherits": "^2.0.1"
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     "optionator": {
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       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.1.tgz",
diff --git a/package.json b/package.json
index abdb7d19..7195bf58 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "browserstack-runner": "^0.9.4",
     "eslint": "^7.24.0",
     "eslint-config-5app": "^0.14.2",
-    "localhost": "^0.3.0",
+    "localhost": "^0.3.4",
     "mocha": "^8.3.2",
     "mocha-headless-chrome": "^3.1.0",
     "semantic-release": "^17.4.2",