diff --git a/package-lock.json b/package-lock.json
index f43fe6f..57b4e3c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -184,27 +184,74 @@
       "dev": true
     },
     "@typescript-eslint/eslint-plugin": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.7.0.tgz",
-      "integrity": "sha512-NUSz1aTlIzzTjFFVFyzrbo8oFjHg3K/M9MzYByqbMCxeFdErhLAcGITVfXzSz+Yvp5OOpMu3HkIttB0NyKl54Q==",
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-1.9.0.tgz",
+      "integrity": "sha512-FOgfBorxjlBGpDIw+0LaZIXRX6GEEUfzj8LXwaQIUCp+gDOvkI+1WgugJ7SmWiISqK9Vj5r8S7NDKO/LB+6X9A==",
       "dev": true,
       "requires": {
-        "@typescript-eslint/parser": "1.7.0",
-        "@typescript-eslint/typescript-estree": "1.7.0",
+        "@typescript-eslint/experimental-utils": "1.9.0",
+        "@typescript-eslint/parser": "1.9.0",
         "eslint-utils": "^1.3.1",
+        "functional-red-black-tree": "^1.0.1",
         "regexpp": "^2.0.1",
         "requireindex": "^1.2.0",
         "tsutils": "^3.7.0"
       },
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-        "tsutils": {
-          "version": "3.10.0",
-          "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.10.0.tgz",
-          "integrity": "sha512-q20XSMq7jutbGB8luhKKsQldRKWvyBO2BGqni3p4yq8Ys9bEP/xQw3KepKmMRt9gJ4lvQSScrihJrcKdKoSU7Q==",
+        "@typescript-eslint/parser": {
+          "version": "1.9.0",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-1.9.0.tgz",
+          "integrity": "sha512-CWgC1XrQ34H/+LwAU7vY5xteZDkNqeAkeidEpJnJgkKu0yqQ3ZhQ7S+dI6MX4vmmM1TKRbOrKuXc6W0fIHhdbA==",
           "dev": true,
           "requires": {
-            "tslib": "^1.8.1"
+            "@typescript-eslint/experimental-utils": "1.9.0",
+            "@typescript-eslint/typescript-estree": "1.9.0",
+            "eslint-scope": "^4.0.0",
+            "eslint-visitor-keys": "^1.0.0"
           }
+        },
+        "@typescript-eslint/typescript-estree": {
+          "version": "1.9.0",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-1.9.0.tgz",
+          "integrity": "sha512-7Eg0TEQpCkTsEwsl1lIzd6i7L3pJLQFWesV08dS87bNz0NeSjbL78gNAP1xCKaCejkds4PhpLnZkaAjx9SU8OA==",
+          "dev": true,
+          "requires": {
+            "lodash.unescape": "4.0.1",
+            "semver": "5.5.0"
+          }
+        },
+        "semver": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
+          "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
+          "dev": true
+        }
+      }
+    },
+    "@typescript-eslint/experimental-utils": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-1.9.0.tgz",
+      "integrity": "sha512-1s2dY9XxBwtS9IlSnRIlzqILPyeMly5tz1bfAmQ84Ul687xBBve5YsH5A5EKeIcGurYYqY2w6RkHETXIwnwV0A==",
+      "dev": true,
+      "requires": {
+        "@typescript-eslint/typescript-estree": "1.9.0"
+      },
+      "dependencies": {
+        "@typescript-eslint/typescript-estree": {
+          "version": "1.9.0",
+          "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-1.9.0.tgz",
+          "integrity": "sha512-7Eg0TEQpCkTsEwsl1lIzd6i7L3pJLQFWesV08dS87bNz0NeSjbL78gNAP1xCKaCejkds4PhpLnZkaAjx9SU8OA==",
+          "dev": true,
+          "requires": {
+            "lodash.unescape": "4.0.1",
+            "semver": "5.5.0"
+          }
+        },
+        "semver": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
+          "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
+          "dev": true
         }
       }
     },
@@ -2059,6 +2106,15 @@
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       "dev": true
     },
+    "tsutils": {
+      "version": "3.14.0",
+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.14.0.tgz",
+      "integrity": "sha512-SmzGbB0l+8I0QwsPgjooFRaRvHLBLNYM8SeQ0k6rtNDru5sCGeLJcZdwilNndN+GysuFjF5EIYgN8GfFG6UeUw==",
+      "dev": true,
+      "requires": {
+        "tslib": "^1.8.1"
+      }
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
diff --git a/package.json b/package.json
index c4afd9a..56cedd3 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "@types/express": "^4.16.1",
     "@types/node": "^12.0.0",
     "@types/request": "^2.48.1",
-    "@typescript-eslint/eslint-plugin": "^1.7.0",
+    "@typescript-eslint/eslint-plugin": "^1.9.0",
     "@typescript-eslint/parser": "^1.7.0",
     "eslint": "^5.16.0",
     "eslint-config-prettier": "^4.2.0",