diff --git a/package.json b/package.json
index 90caef3..c50741d 100644
--- a/package.json
+++ b/package.json
@@ -22,9 +22,9 @@
     "@types/mocha": "8.0.1",
     "@types/sinon-chai": "3.2.4",
     "@types/source-map-support": "0.5.2",
-    "@typescript-eslint/eslint-plugin": "3.8.0",
-    "@typescript-eslint/eslint-plugin-tslint": "3.8.0",
-    "@typescript-eslint/parser": "3.8.0",
+    "@typescript-eslint/eslint-plugin": "3.9.0",
+    "@typescript-eslint/eslint-plugin-tslint": "3.9.0",
+    "@typescript-eslint/parser": "3.9.0",
     "chai": "4.2.0",
     "chai-as-promised": "7.1.1",
     "eslint": "7.6.0",
diff --git a/yarn.lock b/yarn.lock
index bb144ab..b87898d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -428,60 +428,60 @@
     "@types/node" "*"
     source-map "^0.6.0"
 
-"@typescript-eslint/eslint-plugin-tslint@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/eslint-plugin-tslint/-/eslint-plugin-tslint-3.8.0.tgz#9b0f1d0f26408c2ab170f878eb51d1a096d9b82c"
-  integrity sha512-21JffyPyqES8g5dG4ae+gLQDdujsf0CsGzQTIsttToJLE/Q3i682N2weg0re3Y4L44DBvuyxw4EpVE31vFFuAg==
+"@typescript-eslint/eslint-plugin-tslint@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/eslint-plugin-tslint/-/eslint-plugin-tslint-3.9.0.tgz#7c1bc5a1644503faf17842415f7aa46c761cbe7d"
+  integrity sha512-CPEqTJdLXTai/+0zn+0pcW/C30zKYK6tCIaSD76eV+GBUgdWOjwJYi7DcrLIepkcABHWxS3db6hnNuF/48V7nw==
   dependencies:
-    "@typescript-eslint/experimental-utils" "3.8.0"
+    "@typescript-eslint/experimental-utils" "3.9.0"
     lodash "^4.17.15"
 
-"@typescript-eslint/eslint-plugin@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/eslint-plugin/-/eslint-plugin-3.8.0.tgz#f82947bcdd9a4e42be7ad80dfd61f1dc411dd1df"
-  integrity sha512-lFb4VCDleFSR+eo4Ew+HvrJ37ZH1Y9ZyE+qyP7EiwBpcCVxwmUc5PAqhShCQ8N8U5vqYydm74nss+a0wrrCErw==
+"@typescript-eslint/eslint-plugin@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/eslint-plugin/-/eslint-plugin-3.9.0.tgz#0fe529b33d63c9a94f7503ca2bb12c84b9477ff3"
+  integrity sha512-UD6b4p0/hSe1xdTvRCENSx7iQ+KR6ourlZFfYuPC7FlXEzdHuLPrEmuxZ23b2zW96KJX9Z3w05GE/wNOiEzrVg==
   dependencies:
-    "@typescript-eslint/experimental-utils" "3.8.0"
+    "@typescript-eslint/experimental-utils" "3.9.0"
     debug "^4.1.1"
     functional-red-black-tree "^1.0.1"
     regexpp "^3.0.0"
     semver "^7.3.2"
     tsutils "^3.17.1"
 
-"@typescript-eslint/experimental-utils@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/experimental-utils/-/experimental-utils-3.8.0.tgz#ac1f7c88322dcfb7635ece6f0441516dd951099a"
-  integrity sha512-o8T1blo1lAJE0QDsW7nSyvZHbiDzQDjINJKyB44Z3sSL39qBy5L10ScI/XwDtaiunoyKGLiY9bzRk4YjsUZl8w==
+"@typescript-eslint/experimental-utils@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/experimental-utils/-/experimental-utils-3.9.0.tgz#3171d8ddba0bf02a8c2034188593630914fcf5ee"
+  integrity sha512-/vSHUDYizSOhrOJdjYxPNGfb4a3ibO8zd4nUKo/QBFOmxosT3cVUV7KIg8Dwi6TXlr667G7YPqFK9+VSZOorNA==
   dependencies:
     "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/typescript-estree" "3.8.0"
+    "@typescript-eslint/types" "3.9.0"
+    "@typescript-eslint/typescript-estree" "3.9.0"
     eslint-scope "^5.0.0"
     eslint-utils "^2.0.0"
 
-"@typescript-eslint/parser@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/parser/-/parser-3.8.0.tgz#8e1dcd404299bf79492409c81c415fa95a7c622b"
-  integrity sha512-u5vjOBaCsnMVQOvkKCXAmmOhyyMmFFf5dbkM3TIbg3MZ2pyv5peE4gj81UAbTHwTOXEwf7eCQTUMKrDl/+qGnA==
+"@typescript-eslint/parser@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/parser/-/parser-3.9.0.tgz#344978a265d9a5c7c8f13e62c78172a4374dabea"
+  integrity sha512-rDHOKb6uW2jZkHQniUQVZkixQrfsZGUCNWWbKWep4A5hGhN5dLHMUCNAWnC4tXRlHedXkTDptIpxs6e4Pz8UfA==
   dependencies:
     "@types/eslint-visitor-keys" "^1.0.0"
-    "@typescript-eslint/experimental-utils" "3.8.0"
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/typescript-estree" "3.8.0"
+    "@typescript-eslint/experimental-utils" "3.9.0"
+    "@typescript-eslint/types" "3.9.0"
+    "@typescript-eslint/typescript-estree" "3.9.0"
     eslint-visitor-keys "^1.1.0"
 
-"@typescript-eslint/types@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/types/-/types-3.8.0.tgz#58581dd863f86e0cd23353d94362bb90b4bea796"
-  integrity sha512-8kROmEQkv6ss9kdQ44vCN1dTrgu4Qxrd2kXr10kz2NP5T8/7JnEfYNxCpPkArbLIhhkGLZV3aVMplH1RXQRF7Q==
+"@typescript-eslint/types@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/types/-/types-3.9.0.tgz#be9d0aa451e1bf3ce99f2e6920659e5b2e6bfe18"
+  integrity sha512-rb6LDr+dk9RVVXO/NJE8dT1pGlso3voNdEIN8ugm4CWM5w5GimbThCMiMl4da1t5u3YwPWEwOnKAULCZgBtBHg==
 
-"@typescript-eslint/typescript-estree@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/typescript-estree/-/typescript-estree-3.8.0.tgz#0606d19f629f813dbdd5a34c7a1e895d6191cac6"
-  integrity sha512-MTv9nPDhlKfclwnplRNDL44mP2SY96YmPGxmMbMy6x12I+pERcxpIUht7DXZaj4mOKKtet53wYYXU0ABaiXrLw==
+"@typescript-eslint/typescript-estree@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/typescript-estree/-/typescript-estree-3.9.0.tgz#c6abbb50fa0d715cab46fef67ca6378bf2eaca13"
+  integrity sha512-N+158NKgN4rOmWVfvKOMoMFV5n8XxAliaKkArm/sOypzQ0bUL8MSnOEBW3VFIeffb/K5ce/cAV0yYhR7U4ALAA==
   dependencies:
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/visitor-keys" "3.8.0"
+    "@typescript-eslint/types" "3.9.0"
+    "@typescript-eslint/visitor-keys" "3.9.0"
     debug "^4.1.1"
     glob "^7.1.6"
     is-glob "^4.0.1"
@@ -489,10 +489,10 @@
     semver "^7.3.2"
     tsutils "^3.17.1"
 
-"@typescript-eslint/visitor-keys@3.8.0":
-  version "3.8.0"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/visitor-keys/-/visitor-keys-3.8.0.tgz#ad35110249fb3fc30a36bfcbfeea93e710cfaab1"
-  integrity sha512-gfqQWyVPpT9NpLREXNR820AYwgz+Kr1GuF3nf1wxpHD6hdxI62tq03ToomFnDxY0m3pUB39IF7sil7D5TQexLA==
+"@typescript-eslint/visitor-keys@3.9.0":
+  version "3.9.0"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/@typescript-eslint/visitor-keys/-/visitor-keys-3.9.0.tgz#44de8e1b1df67adaf3b94d6b60b80f8faebc8dd3"
+  integrity sha512-O1qeoGqDbu0EZUC/MZ6F1WHTIzcBVhGqDj3LhTnj65WUA548RXVxUHbYhAW9bZWfb2rnX9QsbbP5nmeJ5Z4+ng==
   dependencies:
     eslint-visitor-keys "^1.1.0"