diff --git a/package-lock.json b/package-lock.json
index c8fc075c..f7925199 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4247,9 +4247,9 @@
       }
     },
     "eslint": {
-      "version": "7.13.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.13.0.tgz",
-      "integrity": "sha512-uCORMuOO8tUzJmsdRtrvcGq5qposf7Rw0LwkTJkoDbOycVQtQjmnhZSuLQnozLE4TmAzlMVV45eCHmQ1OpDKUQ==",
+      "version": "7.14.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.14.0.tgz",
+      "integrity": "sha512-5YubdnPXrlrYAFCKybPuHIAH++PINe1pmKNc5wQRB9HSbqIK1ywAnntE3Wwua4giKu0bjligf1gLF6qxMGOYRA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -4385,9 +4385,9 @@
           }
         },
         "debug": {
-          "version": "4.2.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.2.0.tgz",
-          "integrity": "sha512-IX2ncY78vDTjZMFUdmsvIRFY2Cf4FnD0wRs+nQwJU8Lu99/tPFdb0VybiiMTPe3I6rQmwsqQqRBvxU+bZ/I8sg==",
+          "version": "4.3.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
+          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
           "dev": true,
           "requires": {
             "ms": "2.1.2"
diff --git a/package.json b/package.json
index 57da5e34..9c15a31c 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "4.8.1",
     "@typescript-eslint/parser": "4.8.1",
-    "eslint": "7.13.0",
+    "eslint": "7.14.0",
     "eslint-find-rules": "3.6.1",
     "eslint-plugin-jest": "24.1.3",
     "jest": "26.6.3",
@@ -45,7 +45,7 @@
   "peerDependencies": {
     "@typescript-eslint/eslint-plugin": ">=4.8.1 <5.0.0",
     "@typescript-eslint/parser": ">=4.8.1 <5.0.0",
-    "eslint": ">=7.8.1 <8.0.0"
+    "eslint": ">=7.14.0 <8.0.0"
   },
   "peerDependenciesMeta": {
     "@typescript-eslint/eslint-plugin": {
diff --git a/rules/core/best-practices.js b/rules/core/best-practices.js
index 91fff036..1d046e4f 100644
--- a/rules/core/best-practices.js
+++ b/rules/core/best-practices.js
@@ -59,6 +59,7 @@ module.exports = {
     "no-new": "error",
     "no-new-func": "error",
     "no-new-wrappers": "error",
+    "no-nonoctal-decimal-escape": "error",
     "no-octal": "error",
     "no-octal-escape": "error",
     "no-param-reassign": [