diff --git a/package-lock.json b/package-lock.json
index 0bda5e3..e91f23d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -136,12 +136,6 @@
                 "fastq": "^1.6.0"
             }
         },
-        "@types/eslint-visitor-keys": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
-            "integrity": "sha512-OCutwjDZ4aFS6PB1UZ988C4YgwlBHJd6wCeQqaLdmadZ/7e+w79+hbMUFC1QXDNCmdyoRfAFdm0RypzwR+Qpag==",
-            "dev": true
-        },
         "@types/istanbul-lib-coverage": {
             "version": "2.0.3",
             "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz",
@@ -262,28 +256,50 @@
                 }
             }
         },
-        "@typescript-eslint/experimental-utils": {
-            "version": "2.34.0",
-            "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-2.34.0.tgz",
-            "integrity": "sha512-eS6FTkq+wuMJ+sgtuNTtcqavWXqsflWcfBnlYhg/nS4aZ1leewkXGbvBhaapn1q6qf4M71bsR1tez5JTRMuqwA==",
-            "dev": true,
-            "requires": {
-                "@types/json-schema": "^7.0.3",
-                "@typescript-eslint/typescript-estree": "2.34.0",
-                "eslint-scope": "^5.0.0",
-                "eslint-utils": "^2.0.0"
-            }
-        },
         "@typescript-eslint/parser": {
-            "version": "2.34.0",
-            "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-2.34.0.tgz",
-            "integrity": "sha512-03ilO0ucSD0EPTw2X4PntSIRFtDPWjrVq7C3/Z3VQHRC7+13YB55rcJI3Jt+YgeHbjUdJPcPa7b23rXCBokuyA==",
+            "version": "4.11.1",
+            "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-4.11.1.tgz",
+            "integrity": "sha512-BJ3jwPQu1jeynJ5BrjLuGfK/UJu6uwHxJ/di7sanqmUmxzmyIcd3vz58PMR7wpi8k3iWq2Q11KMYgZbUpRoIPw==",
             "dev": true,
             "requires": {
-                "@types/eslint-visitor-keys": "^1.0.0",
-                "@typescript-eslint/experimental-utils": "2.34.0",
-                "@typescript-eslint/typescript-estree": "2.34.0",
-                "eslint-visitor-keys": "^1.1.0"
+                "@typescript-eslint/scope-manager": "4.11.1",
+                "@typescript-eslint/types": "4.11.1",
+                "@typescript-eslint/typescript-estree": "4.11.1",
+                "debug": "^4.1.1"
+            },
+            "dependencies": {
+                "@typescript-eslint/scope-manager": {
+                    "version": "4.11.1",
+                    "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.11.1.tgz",
+                    "integrity": "sha512-Al2P394dx+kXCl61fhrrZ1FTI7qsRDIUiVSuN6rTwss6lUn8uVO2+nnF4AvO0ug8vMsy3ShkbxLu/uWZdTtJMQ==",
+                    "dev": true,
+                    "requires": {
+                        "@typescript-eslint/types": "4.11.1",
+                        "@typescript-eslint/visitor-keys": "4.11.1"
+                    }
+                },
+                "@typescript-eslint/types": {
+                    "version": "4.11.1",
+                    "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.11.1.tgz",
+                    "integrity": "sha512-5kvd38wZpqGY4yP/6W3qhYX6Hz0NwUbijVsX2rxczpY6OXaMxh0+5E5uLJKVFwaBM7PJe1wnMym85NfKYIh6CA==",
+                    "dev": true
+                },
+                "@typescript-eslint/visitor-keys": {
+                    "version": "4.11.1",
+                    "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.11.1.tgz",
+                    "integrity": "sha512-IrlBhD9bm4bdYcS8xpWarazkKXlE7iYb1HzRuyBP114mIaj5DJPo11Us1HgH60dTt41TCZXMaTCAW+OILIYPOg==",
+                    "dev": true,
+                    "requires": {
+                        "@typescript-eslint/types": "4.11.1",
+                        "eslint-visitor-keys": "^2.0.0"
+                    }
+                },
+                "eslint-visitor-keys": {
+                    "version": "2.0.0",
+                    "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz",
+                    "integrity": "sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==",
+                    "dev": true
+                }
             }
         },
         "@typescript-eslint/scope-manager": {
@@ -303,18 +319,43 @@
             "dev": true
         },
         "@typescript-eslint/typescript-estree": {
-            "version": "2.34.0",
-            "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-2.34.0.tgz",
-            "integrity": "sha512-OMAr+nJWKdlVM9LOqCqh3pQQPwxHAN7Du8DR6dmwCrAmxtiXQnhHJ6tBNtf+cggqfo51SG/FCwnKhXCIM7hnVg==",
+            "version": "4.11.1",
+            "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.11.1.tgz",
+            "integrity": "sha512-tC7MKZIMRTYxQhrVAFoJq/DlRwv1bnqA4/S2r3+HuHibqvbrPcyf858lNzU7bFmy4mLeIHFYr34ar/1KumwyRw==",
             "dev": true,
             "requires": {
+                "@typescript-eslint/types": "4.11.1",
+                "@typescript-eslint/visitor-keys": "4.11.1",
                 "debug": "^4.1.1",
-                "eslint-visitor-keys": "^1.1.0",
-                "glob": "^7.1.6",
+                "globby": "^11.0.1",
                 "is-glob": "^4.0.1",
                 "lodash": "^4.17.15",
                 "semver": "^7.3.2",
                 "tsutils": "^3.17.1"
+            },
+            "dependencies": {
+                "@typescript-eslint/types": {
+                    "version": "4.11.1",
+                    "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.11.1.tgz",
+                    "integrity": "sha512-5kvd38wZpqGY4yP/6W3qhYX6Hz0NwUbijVsX2rxczpY6OXaMxh0+5E5uLJKVFwaBM7PJe1wnMym85NfKYIh6CA==",
+                    "dev": true
+                },
+                "@typescript-eslint/visitor-keys": {
+                    "version": "4.11.1",
+                    "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.11.1.tgz",
+                    "integrity": "sha512-IrlBhD9bm4bdYcS8xpWarazkKXlE7iYb1HzRuyBP114mIaj5DJPo11Us1HgH60dTt41TCZXMaTCAW+OILIYPOg==",
+                    "dev": true,
+                    "requires": {
+                        "@typescript-eslint/types": "4.11.1",
+                        "eslint-visitor-keys": "^2.0.0"
+                    }
+                },
+                "eslint-visitor-keys": {
+                    "version": "2.0.0",
+                    "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz",
+                    "integrity": "sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==",
+                    "dev": true
+                }
             }
         },
         "@typescript-eslint/visitor-keys": {
diff --git a/package.json b/package.json
index 336bd86..8819bc8 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     },
     "devDependencies": {
         "@types/node": "^14.14.10",
-        "@typescript-eslint/parser": "^2.8.0",
+        "@typescript-eslint/parser": "^4.11.1",
         "@zeit/ncc": "^0.22.3",
         "eslint": "^6.8.0",
         "eslint-plugin-github": "^4.1.1",