diff --git a/package-lock.json b/package-lock.json
index 656119a..2e25153 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2123,25 +2123,41 @@
       }
     },
     "@typescript-eslint/parser": {
-      "version": "4.26.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-4.26.0.tgz",
-      "integrity": "sha512-b4jekVJG9FfmjUfmM4VoOItQhPlnt6MPOBUL0AQbiTmm+SSpSdhHYlwayOm4IW9KLI/4/cRKtQCmDl1oE2OlPg==",
+      "version": "4.28.5",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-4.28.5.tgz",
+      "integrity": "sha512-NPCOGhTnkXGMqTznqgVbA5LqVsnw+i3+XA1UKLnAb+MG1Y1rP4ZSK9GX0kJBmAZTMIktf+dTwXToT6kFwyimbw==",
       "dev": true,
       "requires": {
-        "@typescript-eslint/scope-manager": "4.26.0",
-        "@typescript-eslint/types": "4.26.0",
-        "@typescript-eslint/typescript-estree": "4.26.0",
+        "@typescript-eslint/scope-manager": "4.28.5",
+        "@typescript-eslint/types": "4.28.5",
+        "@typescript-eslint/typescript-estree": "4.28.5",
         "debug": "^4.3.1"
       },
       "dependencies": {
+        "@typescript-eslint/scope-manager": {
+          "version": "4.28.5",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.28.5.tgz",
+          "integrity": "sha512-PHLq6n9nTMrLYcVcIZ7v0VY1X7dK309NM8ya9oL/yG8syFINIMHxyr2GzGoBYUdv3NUfCOqtuqps0ZmcgnZTfQ==",
+          "dev": true,
+          "requires": {
+            "@typescript-eslint/types": "4.28.5",
+            "@typescript-eslint/visitor-keys": "4.28.5"
+          }
+        },
+        "@typescript-eslint/types": {
+          "version": "4.28.5",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.28.5.tgz",
+          "integrity": "sha512-MruOu4ZaDOLOhw4f/6iudyks/obuvvZUAHBDSW80Trnc5+ovmViLT2ZMDXhUV66ozcl6z0LJfKs1Usldgi/WCA==",
+          "dev": true
+        },
         "@typescript-eslint/typescript-estree": {
-          "version": "4.26.0",
-          "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.26.0.tgz",
-          "integrity": "sha512-GHUgahPcm9GfBuy3TzdsizCcPjKOAauG9xkz9TR8kOdssz2Iz9jRCSQm6+aVFa23d5NcSpo1GdHGSQKe0tlcbg==",
+          "version": "4.28.5",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.28.5.tgz",
+          "integrity": "sha512-FzJUKsBX8poCCdve7iV7ShirP8V+ys2t1fvamVeD1rWpiAnIm550a+BX/fmTHrjEpQJ7ZAn+Z7ZZwJjytk9rZw==",
           "dev": true,
           "requires": {
-            "@typescript-eslint/types": "4.26.0",
-            "@typescript-eslint/visitor-keys": "4.26.0",
+            "@typescript-eslint/types": "4.28.5",
+            "@typescript-eslint/visitor-keys": "4.28.5",
             "debug": "^4.3.1",
             "globby": "^11.0.3",
             "is-glob": "^4.0.1",
@@ -2149,6 +2165,16 @@
             "tsutils": "^3.21.0"
           }
         },
+        "@typescript-eslint/visitor-keys": {
+          "version": "4.28.5",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.28.5.tgz",
+          "integrity": "sha512-dva/7Rr+EkxNWdJWau26xU/0slnFlkh88v3TsyTgRS/IIYFi5iIfpCFM4ikw0vQTFUR9FYSSyqgK4w64gsgxhg==",
+          "dev": true,
+          "requires": {
+            "@typescript-eslint/types": "4.28.5",
+            "eslint-visitor-keys": "^2.0.0"
+          }
+        },
         "semver": {
           "version": "7.3.5",
           "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
@@ -2157,15 +2183,6 @@
           "requires": {
             "lru-cache": "^6.0.0"
           }
-        },
-        "tsutils": {
-          "version": "3.21.0",
-          "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.21.0.tgz",
-          "integrity": "sha512-mHKK3iUXL+3UF6xL5k0PEhKRUBKPBCv/+RkEOpjRWxxx27KKRBmmA60A9pgOUvMi8GKhRMPEmjBRPzs2W7O1OA==",
-          "dev": true,
-          "requires": {
-            "tslib": "^1.8.1"
-          }
         }
       }
     },
diff --git a/package.json b/package.json
index 9e0659c..a6a59ba 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.23",
     "@types/node": "^15.6.2",
-    "@typescript-eslint/parser": "^4.26.0",
+    "@typescript-eslint/parser": "^4.28.5",
     "@zeit/ncc": "^0.22.3",
     "eslint": "^7.27.0",
     "eslint-plugin-github": "^4.1.3",