diff --git a/.eslintrc.yml b/.eslintrc.yml
index 70ec0f57aa..b0b1cc4afe 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -443,7 +443,7 @@ overrides:
       import/export: off
 
       ##########################################################################
-      # `@typescript-eslint/eslint-plugin` rule list based on `v2.16.x`
+      # `@typescript-eslint/eslint-plugin` rule list based on `v2.17.x`
       ##########################################################################
 
       # Supported Rules
@@ -458,6 +458,7 @@ overrides:
       '@typescript-eslint/consistent-type-definitions': off # TODO consider
       '@typescript-eslint/explicit-function-return-type': off # TODO consider
       '@typescript-eslint/explicit-member-accessibility': off # TODO consider
+      '@typescript-eslint/explicit-module-boundary-types': off # TODO consider
       '@typescript-eslint/member-ordering': off # TODO consider
       '@typescript-eslint/naming-convention': off # TODO consider
       '@typescript-eslint/no-dynamic-delete': off
@@ -473,6 +474,7 @@ overrides:
       '@typescript-eslint/no-misused-new': error
       '@typescript-eslint/no-misused-promises': error
       '@typescript-eslint/no-namespace': error
+      '@typescript-eslint/no-non-null-asserted-optional-chain': error
       '@typescript-eslint/no-non-null-assertion': error
       '@typescript-eslint/no-parameter-properties': error
       '@typescript-eslint/no-require-imports': error
diff --git a/package.json b/package.json
index b8838a82dc..1435ebe89f 100644
--- a/package.json
+++ b/package.json
@@ -49,8 +49,8 @@
     "@babel/polyfill": "7.8.3",
     "@babel/preset-env": "7.8.3",
     "@babel/register": "7.8.3",
-    "@typescript-eslint/eslint-plugin": "2.16.0",
-    "@typescript-eslint/parser": "2.16.0",
+    "@typescript-eslint/eslint-plugin": "2.17.0",
+    "@typescript-eslint/parser": "2.17.0",
     "babel-eslint": "10.0.3",
     "chai": "4.2.0",
     "cspell": "4.0.44",
diff --git a/yarn.lock b/yarn.lock
index 31ce95bef9..c4498b340b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -773,44 +773,44 @@
   integrity sha512-8+KAKzEvSUdeo+kmqnKrqgeE+LcA0tjYWFY7RPProVYwnqDjukzO+3b6dLD56rYX5TdWejnEOLJYOIeh4CXKuA==
 
 "@types/parsimmon@^1.3.0":
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/@types/parsimmon/-/parsimmon-1.10.0.tgz#ffb81cb023ff435a41d4710a29ab23c561dc9fdf"
-  integrity sha512-bsTIJFVQv7jnvNiC42ld2pQW2KRI+pAG243L+iATvqzy3X6+NH1obz2itRKDZZ8VVhN3wjwYax/VBGCcXzgTqQ==
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/@types/parsimmon/-/parsimmon-1.10.1.tgz#d46015ad91128fce06a1a688ab39a2516507f740"
+  integrity sha512-MoF2IC9oGSgArJwlxdst4XsvWuoYfNUWtBw0kpnCi6K05kV+Ecl7siEeJ40tgCbI9uqEMGQL/NlPMRv6KVkY5Q==
 
-"@typescript-eslint/eslint-plugin@2.16.0":
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.16.0.tgz#bf339b7db824c7cc3fd1ebedbc88dd17016471af"
-  integrity sha512-TKWbeFAKRPrvKiR9GNxErQ8sELKqg1ZvXi6uho07mcKShBnCnqNpDQWP01FEvWKf0bxM2g7uQEI5MNjSNqvUpQ==
+"@typescript-eslint/eslint-plugin@2.17.0":
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.17.0.tgz#880435a9f9bdd50b45fa286ba63fed723d73c837"
+  integrity sha512-tg/OMOtPeXlvk0ES8mZzEZ4gd1ruSE03nsKcK+teJhxYv5CPCXK6Mb/OK6NpB4+CqGTHs4MVeoSZXNFqpT1PyQ==
   dependencies:
-    "@typescript-eslint/experimental-utils" "2.16.0"
+    "@typescript-eslint/experimental-utils" "2.17.0"
     eslint-utils "^1.4.3"
     functional-red-black-tree "^1.0.1"
     regexpp "^3.0.0"
     tsutils "^3.17.1"
 
-"@typescript-eslint/experimental-utils@2.16.0":
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-2.16.0.tgz#bba65685728c532e0ddc811a0376e8d38e671f77"
-  integrity sha512-bXTmAztXpqxliDKZgvWkl+5dHeRN+jqXVZ16peKKFzSXVzT6mz8kgBpHiVzEKO2NZ8OCU7dG61K9sRS/SkUUFQ==
+"@typescript-eslint/experimental-utils@2.17.0":
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-2.17.0.tgz#12ed4a5d656e02ff47a93efc7d1ce1b8f1242351"
+  integrity sha512-2bNf+mZ/3mj5/3CP56v+ldRK3vFy9jOvmCPs/Gr2DeSJh+asPZrhFniv4QmQsHWQFPJFWhFHgkGgJeRmK4m8iQ==
   dependencies:
     "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/typescript-estree" "2.16.0"
+    "@typescript-eslint/typescript-estree" "2.17.0"
     eslint-scope "^5.0.0"
 
-"@typescript-eslint/parser@2.16.0":
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-2.16.0.tgz#d0c0135a8fdb915f670802ddd7c1ba457c1b4f9d"
-  integrity sha512-+w8dMaYETM9v6il1yYYkApMSiwgnqXWJbXrA94LAWN603vXHACsZTirJduyeBOJjA9wT6xuXe5zZ1iCUzoxCfw==
+"@typescript-eslint/parser@2.17.0":
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-2.17.0.tgz#627f79586d868edbab55f46a6b183cdc341aea1d"
+  integrity sha512-k1g3gRQ4fwfJoIfgUpz78AovicSWKFANmvTfkAHP24MgJHjWfZI6ya7tsQZt1sLczvP4G9BE5G5MgADHdmJB/w==
   dependencies:
     "@types/eslint-visitor-keys" "^1.0.0"
-    "@typescript-eslint/experimental-utils" "2.16.0"
-    "@typescript-eslint/typescript-estree" "2.16.0"
+    "@typescript-eslint/experimental-utils" "2.17.0"
+    "@typescript-eslint/typescript-estree" "2.17.0"
     eslint-visitor-keys "^1.1.0"
 
-"@typescript-eslint/typescript-estree@2.16.0":
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-2.16.0.tgz#b444943a76c716ed32abd08cbe96172d2ca0ab75"
-  integrity sha512-hyrCYjFHISos68Bk5KjUAXw0pP/455qq9nxqB1KkT67Pxjcfw+r6Yhcmqnp8etFL45UexCHUMrADHH7dI/m2WQ==
+"@typescript-eslint/typescript-estree@2.17.0":
+  version "2.17.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-2.17.0.tgz#2ce1531ec0925ef8d22d7026235917c2638a82af"
+  integrity sha512-g0eVRULGnEEUakxRfJO0s0Hr1LLQqsI6OrkiCLpdHtdJJek+wyd8mb00vedqAoWldeDcOcP8plqw8/jx9Gr3Lw==
   dependencies:
     debug "^4.1.1"
     eslint-visitor-keys "^1.1.0"
@@ -1047,13 +1047,13 @@ browser-stdout@1.3.1:
   integrity sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==
 
 browserslist@^4.8.2, browserslist@^4.8.3:
-  version "4.8.3"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.8.3.tgz#65802fcd77177c878e015f0e3189f2c4f627ba44"
-  integrity sha512-iU43cMMknxG1ClEZ2MDKeonKE1CCrFVkQK2AqO2YWFmvIrx4JWrvQ4w4hQez6EpVI8rHTtqh/ruHHDHSOKxvUg==
+  version "4.8.5"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.8.5.tgz#691af4e327ac877b25e7a3f7ee869c4ef36cdea3"
+  integrity sha512-4LMHuicxkabIB+n9874jZX/az1IaZ5a+EUuvD7KFOu9x/Bd5YHyO0DIz2ls/Kl8g0ItS4X/ilEgf4T1Br0lgSg==
   dependencies:
-    caniuse-lite "^1.0.30001017"
-    electron-to-chromium "^1.3.322"
-    node-releases "^1.1.44"
+    caniuse-lite "^1.0.30001022"
+    electron-to-chromium "^1.3.338"
+    node-releases "^1.1.46"
 
 buffer-from@^1.0.0:
   version "1.1.1"
@@ -1085,10 +1085,10 @@ camelcase@^5.0.0, camelcase@^5.3.1:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
-caniuse-lite@^1.0.30001017:
-  version "1.0.30001021"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001021.tgz#e75ed1ef6dbadd580ac7e7720bb16f07b083f254"
-  integrity sha512-wuMhT7/hwkgd8gldgp2jcrUjOU9RXJ4XxGumQeOsUr91l3WwmM68Cpa/ymCnWEDqakwFXhuDQbaKNHXBPgeE9g==
+caniuse-lite@^1.0.30001022:
+  version "1.0.30001022"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001022.tgz#9eeffe580c3a8f110b7b1742dcf06a395885e4c6"
+  integrity sha512-FjwPPtt/I07KyLPkBQ0g7/XuZg6oUkYBVnPHNj3VHJbOjmmJ/GdSo/GUY6MwINEQvjhP6WZVbX8Tvms8xh0D5A==
 
 caseless@~0.12.0:
   version "0.12.0"
@@ -1705,10 +1705,10 @@ ecc-jsbn@~0.1.1:
     jsbn "~0.1.0"
     safer-buffer "^2.1.0"
 
-electron-to-chromium@^1.3.322:
-  version "1.3.337"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.337.tgz#b2c093cdb66121a946d333b454adcdc5666ceaed"
-  integrity sha512-uJ+wLjslYQ/2rAusDg+6FlK8DLhHWTLCe7gkofBehTifW7KCkPVTn5rhKSCncWYNq34Iy/o4OfswuEkAO2RBaw==
+electron-to-chromium@^1.3.338:
+  version "1.3.340"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.340.tgz#5d4fe78e984d4211194cf5a52e08069543da146f"
+  integrity sha512-hRFBAglhcj5iVYH+o8QU0+XId1WGoc0VGowJB1cuJAt3exHGrivZvWeAO5BRgBZqwZtwxjm8a5MQeGoT/Su3ww==
 
 emoji-regex@^7.0.1:
   version "7.0.3"
@@ -1735,9 +1735,9 @@ error-ex@^1.2.0:
     is-arrayish "^0.2.1"
 
 es-abstract@^1.17.0, es-abstract@^1.17.0-next.1:
-  version "1.17.2"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.17.2.tgz#965b10af56597b631da15872c17a405e86c1fd46"
-  integrity sha512-YoKuru3Lyoy7yVTBSH2j7UxTqe/je3dWAruC0sHvZX1GNd5zX8SSLvQqEgO9b3Ex8IW+goFI9arEEsFIbulhOw==
+  version "1.17.4"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.17.4.tgz#e3aedf19706b20e7c2594c35fc0d57605a79e184"
+  integrity sha512-Ae3um/gb8F0mui/jPL+QiqmglkUsaQf7FwBEHYIFkztkneosu9imhqHpBzQ3h1vit8t5iQ74t6PEVvphBZiuiQ==
   dependencies:
     es-to-primitive "^1.2.1"
     function-bind "^1.1.1"
@@ -2888,10 +2888,10 @@ node-preload@^0.2.0:
   dependencies:
     process-on-spawn "^1.0.0"
 
-node-releases@^1.1.44:
-  version "1.1.46"
-  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.46.tgz#6b262afef1bdc9a950a96df2e77e0d2290f484bf"
-  integrity sha512-YOjdx+Uoh9FbRO7yVYbnbt1puRWPQMemR3SutLeyv2XfxKs1ihpe0OLAUwBPEP2ImNH/PZC7SEiC6j32dwRZ7g==
+node-releases@^1.1.46:
+  version "1.1.47"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.47.tgz#c59ef739a1fd7ecbd9f0b7cf5b7871e8a8b591e4"
+  integrity sha512-k4xjVPx5FpwBUj0Gw7uvFOTF4Ep8Hok1I6qjwL3pLfwe7Y0REQSAqOwwv9TWBCUtMHxcXfY4PgRLRozcChvTcA==
   dependencies:
     semver "^6.3.0"
 
@@ -3421,9 +3421,9 @@ resolve-from@^5.0.0:
   integrity sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==
 
 resolve@^1.10.0, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.3.2:
-  version "1.14.2"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.14.2.tgz#dbf31d0fa98b1f29aa5169783b9c290cb865fea2"
-  integrity sha512-EjlOBLBO1kxsUxsKjLt7TAECyKW6fOh1VRkykQkKGzcBbjjPIxBqGh0jf7GJ3k/f5mxMqW3htMD3WdTUVtW8HQ==
+  version "1.15.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.15.0.tgz#1b7ca96073ebb52e741ffd799f6b39ea462c67f5"
+  integrity sha512-+hTmAldEGE80U2wJJDC1lebb5jWqvTYAfm3YZ1ckk1gBr0MnCqUKlwK1e+anaFljIl+F5tR5IoZcm4ZDA1zMQw==
   dependencies:
     path-parse "^1.0.6"
 
@@ -3878,9 +3878,9 @@ typescript@^3.7.5:
   integrity sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==
 
 typescript@next:
-  version "3.8.0-dev.20200119"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.0-dev.20200119.tgz#9ab0166277b5ed48ed60d10bae7ab404cbef480b"
-  integrity sha512-BFS2oF3dDq1FcoEQI8K7X1KeL19NHgHncUme/0cjuJCy1Q4lrJO/dVz21xi2GSNhXqXSYp4wszutJaslI1v/bQ==
+  version "3.8.0-dev.20200124"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.0-dev.20200124.tgz#93729dfc4fe79a214161c94a55b05fcc8b4d0d7a"
+  integrity sha512-Hz6VFBQkmF055yqWPRBeJTSfkV1qjF98SPlVmxxlkoO5uyWoxNFs50wxQ5E6SNe4iPPE66x4gHQz0mhalM37pA==
 
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"