diff --git a/package.json b/package.json
index cb496683..b3e936a5 100644
--- a/package.json
+++ b/package.json
@@ -35,8 +35,8 @@
   },
   "dependencies": {
     "@sourcegraph/prettierrc": "^3.0.3",
-    "@typescript-eslint/eslint-plugin": "^4.9.1",
-    "@typescript-eslint/parser": "^4.9.1",
+    "@typescript-eslint/eslint-plugin": "^4.28.1",
+    "@typescript-eslint/parser": "^4.28.1",
     "eslint-config-prettier": "^6.15.0",
     "eslint-plugin-ban": "^1.4.0",
     "eslint-plugin-etc": "^1.1.7",
diff --git a/yarn.lock b/yarn.lock
index 3f0cb9bf..ca38e54d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -495,10 +495,10 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/json-schema@^7.0.3":
-  version "7.0.3"
-  resolved "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"
-  integrity sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==
+"@types/json-schema@^7.0.7":
+  version "7.0.7"
+  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.7.tgz#98a993516c859eb0d5c4c8f098317a9ea68db9ad"
+  integrity sha512-cxWFQVseBm6O9Gbw1IWb8r6OS4OhSt3hPZLkFApLjM8TEXROBuQGLAH2i2gZpcXdLBIrpXuTDhH7Vbm1iXmNGA==
 
 "@types/json5@^0.0.29":
   version "0.0.29"
@@ -537,74 +537,73 @@
   dependencies:
     "@types/yargs-parser" "*"
 
-"@typescript-eslint/eslint-plugin@^4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.9.1.tgz#66758cbe129b965fe9c63b04b405d0cf5280868b"
-  integrity sha512-QRLDSvIPeI1pz5tVuurD+cStNR4sle4avtHhxA+2uyixWGFjKzJ+EaFVRW6dA/jOgjV5DTAjOxboQkRDE8cRlQ==
+"@typescript-eslint/eslint-plugin@^4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.28.1.tgz#c045e440196ae45464e08e20c38aff5c3a825947"
+  integrity sha512-9yfcNpDaNGQ6/LQOX/KhUFTR1sCKH+PBr234k6hI9XJ0VP5UqGxap0AnNwBnWFk1MNyWBylJH9ZkzBXC+5akZQ==
   dependencies:
-    "@typescript-eslint/experimental-utils" "4.9.1"
-    "@typescript-eslint/scope-manager" "4.9.1"
-    debug "^4.1.1"
+    "@typescript-eslint/experimental-utils" "4.28.1"
+    "@typescript-eslint/scope-manager" "4.28.1"
+    debug "^4.3.1"
     functional-red-black-tree "^1.0.1"
-    regexpp "^3.0.0"
-    semver "^7.3.2"
-    tsutils "^3.17.1"
-
-"@typescript-eslint/experimental-utils@4.9.1", "@typescript-eslint/experimental-utils@^4.0.0":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-4.9.1.tgz#86633e8395191d65786a808dc3df030a55267ae2"
-  integrity sha512-c3k/xJqk0exLFs+cWSJxIjqLYwdHCuLWhnpnikmPQD2+NGAx9KjLYlBDcSI81EArh9FDYSL6dslAUSwILeWOxg==
-  dependencies:
-    "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/scope-manager" "4.9.1"
-    "@typescript-eslint/types" "4.9.1"
-    "@typescript-eslint/typescript-estree" "4.9.1"
-    eslint-scope "^5.0.0"
-    eslint-utils "^2.0.0"
-
-"@typescript-eslint/parser@^4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-4.9.1.tgz#2d74c4db5dd5117379a9659081a4d1ec02629055"
-  integrity sha512-Gv2VpqiomvQ2v4UL+dXlQcZ8zCX4eTkoIW+1aGVWT6yTO+6jbxsw7yQl2z2pPl/4B9qa5JXeIbhJpONKjXIy3g==
-  dependencies:
-    "@typescript-eslint/scope-manager" "4.9.1"
-    "@typescript-eslint/types" "4.9.1"
-    "@typescript-eslint/typescript-estree" "4.9.1"
-    debug "^4.1.1"
-
-"@typescript-eslint/scope-manager@4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-4.9.1.tgz#cc2fde310b3f3deafe8436a924e784eaab265103"
-  integrity sha512-sa4L9yUfD/1sg9Kl8OxPxvpUcqxKXRjBeZxBuZSSV1v13hjfEJkn84n0An2hN8oLQ1PmEl2uA6FkI07idXeFgQ==
-  dependencies:
-    "@typescript-eslint/types" "4.9.1"
-    "@typescript-eslint/visitor-keys" "4.9.1"
-
-"@typescript-eslint/types@4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.9.1.tgz#a1a7dd80e4e5ac2c593bc458d75dd1edaf77faa2"
-  integrity sha512-fjkT+tXR13ks6Le7JiEdagnwEFc49IkOyys7ueWQ4O8k4quKPwPJudrwlVOJCUQhXo45PrfIvIarcrEjFTNwUA==
-
-"@typescript-eslint/typescript-estree@4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.9.1.tgz#6e5b86ff5a5f66809e1f347469fadeec69ac50bf"
-  integrity sha512-bzP8vqwX6Vgmvs81bPtCkLtM/Skh36NE6unu6tsDeU/ZFoYthlTXbBmpIrvosgiDKlWTfb2ZpPELHH89aQjeQw==
-  dependencies:
-    "@typescript-eslint/types" "4.9.1"
-    "@typescript-eslint/visitor-keys" "4.9.1"
-    debug "^4.1.1"
-    globby "^11.0.1"
+    regexpp "^3.1.0"
+    semver "^7.3.5"
+    tsutils "^3.21.0"
+
+"@typescript-eslint/experimental-utils@4.28.1", "@typescript-eslint/experimental-utils@^4.0.0":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-4.28.1.tgz#3869489dcca3c18523c46018b8996e15948dbadc"
+  integrity sha512-n8/ggadrZ+uyrfrSEchx3jgODdmcx7MzVM2sI3cTpI/YlfSm0+9HEUaWw3aQn2urL2KYlWYMDgn45iLfjDYB+Q==
+  dependencies:
+    "@types/json-schema" "^7.0.7"
+    "@typescript-eslint/scope-manager" "4.28.1"
+    "@typescript-eslint/types" "4.28.1"
+    "@typescript-eslint/typescript-estree" "4.28.1"
+    eslint-scope "^5.1.1"
+    eslint-utils "^3.0.0"
+
+"@typescript-eslint/parser@^4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-4.28.1.tgz#5181b81658414f47291452c15bf6cd44a32f85bd"
+  integrity sha512-UjrMsgnhQIIK82hXGaD+MCN8IfORS1CbMdu7VlZbYa8LCZtbZjJA26De4IPQB7XYZbL8gJ99KWNj0l6WD0guJg==
+  dependencies:
+    "@typescript-eslint/scope-manager" "4.28.1"
+    "@typescript-eslint/types" "4.28.1"
+    "@typescript-eslint/typescript-estree" "4.28.1"
+    debug "^4.3.1"
+
+"@typescript-eslint/scope-manager@4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-4.28.1.tgz#fd3c20627cdc12933f6d98b386940d8d0ce8a991"
+  integrity sha512-o95bvGKfss6705x7jFGDyS7trAORTy57lwJ+VsYwil/lOUxKQ9tA7Suuq+ciMhJc/1qPwB3XE2DKh9wubW8YYA==
+  dependencies:
+    "@typescript-eslint/types" "4.28.1"
+    "@typescript-eslint/visitor-keys" "4.28.1"
+
+"@typescript-eslint/types@4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.28.1.tgz#d0f2ecbef3684634db357b9bbfc97b94b828f83f"
+  integrity sha512-4z+knEihcyX7blAGi7O3Fm3O6YRCP+r56NJFMNGsmtdw+NCdpG5SgNz427LS9nQkRVTswZLhz484hakQwB8RRg==
+
+"@typescript-eslint/typescript-estree@4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.28.1.tgz#af882ae41740d1f268e38b4d0fad21e7e8d86a81"
+  integrity sha512-GhKxmC4sHXxHGJv8e8egAZeTZ6HI4mLU6S7FUzvFOtsk7ZIDN1ksA9r9DyOgNqowA9yAtZXV0Uiap61bIO81FQ==
+  dependencies:
+    "@typescript-eslint/types" "4.28.1"
+    "@typescript-eslint/visitor-keys" "4.28.1"
+    debug "^4.3.1"
+    globby "^11.0.3"
     is-glob "^4.0.1"
-    lodash "^4.17.15"
-    semver "^7.3.2"
-    tsutils "^3.17.1"
+    semver "^7.3.5"
+    tsutils "^3.21.0"
 
-"@typescript-eslint/visitor-keys@4.9.1":
-  version "4.9.1"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.9.1.tgz#d76374a58c4ead9e92b454d186fea63487b25ae1"
-  integrity sha512-9gspzc6UqLQHd7lXQS7oWs+hrYggspv/rk6zzEMhCbYwPE/sF7oxo7GAjkS35Tdlt7wguIG+ViWCPtVZHz/ybQ==
+"@typescript-eslint/visitor-keys@4.28.1":
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.28.1.tgz#162a515ee255f18a6068edc26df793cdc1ec9157"
+  integrity sha512-K4HMrdFqr9PFquPu178SaSb92CaWe2yErXyPumc8cYWxFmhgJsNY9eSePmO05j0JhBvf2Cdhptd6E6Yv9HVHcg==
   dependencies:
-    "@typescript-eslint/types" "4.9.1"
+    "@typescript-eslint/types" "4.28.1"
     eslint-visitor-keys "^2.0.0"
 
 JSONStream@^1.0.4, JSONStream@^1.3.4, JSONStream@^1.3.5:
@@ -1494,10 +1493,10 @@ debug@3.1.0, debug@^3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@4, debug@^4.0.0, debug@^4.1.0, debug@^4.1.1, debug@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.2.0.tgz#7f150f93920e94c58f5574c2fd01a3110effe7f1"
-  integrity sha512-IX2ncY78vDTjZMFUdmsvIRFY2Cf4FnD0wRs+nQwJU8Lu99/tPFdb0VybiiMTPe3I6rQmwsqQqRBvxU+bZ/I8sg==
+debug@4, debug@^4.0.0, debug@^4.1.0, debug@^4.2.0, debug@^4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.1.tgz#f0d229c505e0c6d8c49ac553d1b13dc183f6b2ee"
+  integrity sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==
   dependencies:
     ms "2.1.2"
 
@@ -1971,12 +1970,12 @@ eslint-plugin-unicorn@^21.0.0:
     safe-regex "^2.1.1"
     semver "^7.3.2"
 
-eslint-scope@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.0.0.tgz#e87c8887c73e8d1ec84f1ca591645c358bfc8fb9"
-  integrity sha512-oYrhJW7S0bxAFDvWqzvMPRm6pcgcnWc4QnofCAqRTRfQC0JcwenzGglTtsLyIuuWFfkqDG9vz67cnttSd53djw==
+eslint-scope@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-5.1.1.tgz#e786e59a66cb92b3f6c1fb0d508aab174848f48c"
+  integrity sha512-2NxwbF/hZ0KpepYN0cNbo+FN6XoK7GaHlQhgx/hIZl6Va0bF45RQOOwhLIy8lQDbuCiadSLCBnH2CFYquit5bw==
   dependencies:
-    esrecurse "^4.1.0"
+    esrecurse "^4.3.0"
     estraverse "^4.1.1"
 
 eslint-template-visitor@^2.0.0:
@@ -1988,13 +1987,20 @@ eslint-template-visitor@^2.0.0:
     espree "^7.0.0"
     multimap "^1.1.0"
 
-eslint-utils@^2.0.0, eslint-utils@^2.1.0:
+eslint-utils@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-2.1.0.tgz#d2de5e03424e707dc10c74068ddedae708741b27"
   integrity sha512-w94dQYoauyvlDc43XnGB8lU3Zt713vNChgt4EWwhXAP2XkBvndfxF0AgIqKOOasjPIPzj9JqgwkwbCYD0/V3Zg==
   dependencies:
     eslint-visitor-keys "^1.1.0"
 
+eslint-utils@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-3.0.0.tgz#8aebaface7345bb33559db0a1f13a1d2d48c3672"
+  integrity sha512-uuQC43IGctw68pJA1RgbQS8/NP7rch6Cwd4j3ZBtgo4/8Flj4eGE7ZYSZRN3iq5pVUv6GPdW5Z1RFleo84uLDA==
+  dependencies:
+    eslint-visitor-keys "^2.0.0"
+
 eslint-visitor-keys@^1.1.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
@@ -2026,18 +2032,23 @@ esquery@^1.0.1:
   dependencies:
     estraverse "^4.0.0"
 
-esrecurse@^4.1.0:
-  version "4.2.1"
-  resolved "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
-  integrity sha512-64RBB++fIOAXPw3P9cy89qfMlvZEXZkqqJkjqqXIvzP5ezRZjW+lPWjw35UX/3EhUPFYbg5ER4JYgDw4007/DQ==
+esrecurse@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.3.0.tgz#7ad7964d679abb28bee72cec63758b1c5d2c9921"
+  integrity sha512-KmfKL3b6G+RXvP8N1vr3Tq1kL/oCFgn2NYXEtqP8/L3pKapUA4G8cFVaoF3SU323CD4XypR/ffioHmkti6/Tag==
   dependencies:
-    estraverse "^4.1.0"
+    estraverse "^5.2.0"
 
-estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
+estraverse@^4.0.0, estraverse@^4.1.1:
   version "4.3.0"
   resolved "https://registry.npmjs.org/estraverse/-/estraverse-4.3.0.tgz#398ad3f3c5a24948be7725e83d11a7de28cdbd1d"
   integrity sha512-39nnKffWz8xN1BU/2c79n9nB9HDzo0niYUqx6xyqUnyoAnQyyWpOTdZEeiCch8BBu515t4wp9ZmgVfVhn9EBpw==
 
+estraverse@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-5.2.0.tgz#307df42547e6cc7324d3cf03c155d5cdb8c53880"
+  integrity sha512-BxbNGGNm0RyRYvUdHpIwv9IWzeM9XClbOxwoATuFdOE7ZE6wHL+HQ5T8hoPM+zHvmKzzsEqhgy0GrQ5X13afiQ==
+
 esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
@@ -2419,10 +2430,10 @@ globals@^11.1.0:
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
   integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
 
-globby@^11.0.0, globby@^11.0.1:
-  version "11.0.1"
-  resolved "https://registry.yarnpkg.com/globby/-/globby-11.0.1.tgz#9a2bf107a068f3ffeabc49ad702c79ede8cfd357"
-  integrity sha512-iH9RmgwCmUJHi2z5o2l3eTtGBtXek1OYlHrbcxOYugyHLmAsZrPj43OtHThd62Buh/Vv6VyCBD2bdyWcGNQqoQ==
+globby@^11.0.0, globby@^11.0.3:
+  version "11.0.4"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-11.0.4.tgz#2cbaff77c2f2a62e71e9b2813a67b97a3a3001a5"
+  integrity sha512-9O4MVG9ioZJ08ffbcyVYyLOJLk5JQ688pJ4eMGLpdWLHq/Wr1D9BlriLQyL0E+jbkuePVZXYFj47QM/v093wHg==
   dependencies:
     array-union "^2.1.0"
     dir-glob "^3.0.1"
@@ -4777,10 +4788,10 @@ regexp.prototype.flags@^1.3.0:
     define-properties "^1.1.3"
     es-abstract "^1.17.0-next.1"
 
-regexpp@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-3.0.0.tgz#dd63982ee3300e67b41c1956f850aa680d9d330e"
-  integrity sha512-Z+hNr7RAVWxznLPuA7DIh8UNX1j9CDrUQxskw9IrBE1Dxue2lyXT+shqEIeLUjrokxIP8CMy1WkjgG3rTsd5/g==
+regexpp@^3.1.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-3.2.0.tgz#0425a2768d8f23bad70ca4b90461fa2f1213e1b2"
+  integrity sha512-pq2bWo9mVD43nbts2wGv17XLiNLya+GklZ8kaDLV2Z08gDCsGpnKn9BFMepvWuHCbyVvY7J5o5+BVvoQbmlJLg==
 
 regextras@^0.7.1:
   version "0.7.1"
@@ -5017,7 +5028,7 @@ semver-regex@^2.0.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
 
-semver@7.3.5, semver@^7.1.2, semver@^7.3.2:
+semver@7.3.5, semver@^7.1.2, semver@^7.3.2, semver@^7.3.5:
   version "7.3.5"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
   integrity sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==
@@ -5532,10 +5543,10 @@ tsutils-etc@^1.0.0, tsutils-etc@^1.2.2:
   resolved "https://registry.yarnpkg.com/tsutils-etc/-/tsutils-etc-1.2.2.tgz#cdeeb777574a5c1b15b27658cb8424f7f7139831"
   integrity sha512-5g2cXpD1OoVc/MLZxh5PuHXhlnYQmuRiW66e1n91j+2J/Pw5lfmVcZAghoDVBdltDXGaCjy8ZttXaX2u/MjHgg==
 
-tsutils@^3.0.0, tsutils@^3.17.1:
-  version "3.17.1"
-  resolved "https://registry.npmjs.org/tsutils/-/tsutils-3.17.1.tgz#ed719917f11ca0dee586272b2ac49e015a2dd759"
-  integrity sha512-kzeQ5B8H3w60nFY2g8cJIuH7JDpsALXySGtwGJ0p2LSjLgay3NdIpqq5SoOBe46bKDW2iq25irHCr8wjomUS2g==
+tsutils@^3.0.0, tsutils@^3.17.1, tsutils@^3.21.0:
+  version "3.21.0"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-3.21.0.tgz#b48717d394cea6c1e096983eed58e9d61715b623"
+  integrity sha512-mHKK3iUXL+3UF6xL5k0PEhKRUBKPBCv/+RkEOpjRWxxx27KKRBmmA60A9pgOUvMi8GKhRMPEmjBRPzs2W7O1OA==
   dependencies:
     tslib "^1.8.1"