diff --git a/.eslintrc.js b/.eslintrc.js
index e537d1fd45..65a20457b6 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -250,9 +250,12 @@ module.exports = {
                 ignoreAccessorPattern: ["**.root*", "**.numberingReferences*", "**.sections*", "**.properties*"],
             },
         ],
-        "functional/no-method-signature": "error",
-        "functional/no-mixed-type": "error",
+        "functional/prefer-property-signatures": "error",
+        "functional/no-mixed-types": "error",
+        // TODO: Deprecated. Use prefer-immutable-types and type-declaration-immutability instead
         "functional/prefer-readonly-type": "error",
+        // "functional/prefer-immutable-types": "error",
+        // "functional/type-declaration-immutability": "error",
         "no-unused-vars": ["error", { argsIgnorePattern: "^[_]+$" }],
     },
     overrides: [
diff --git a/package-lock.json b/package-lock.json
index 06018caee0..22bf909e06 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
         "cspell": "^6.2.2",
         "docsify-cli": "^4.3.0",
         "eslint": "^8.23.0",
-        "eslint-plugin-functional": "^4.3.1",
+        "eslint-plugin-functional": "^5.0.1",
         "eslint-plugin-import": "^2.26.0",
         "eslint-plugin-jsdoc": "^39.3.6",
         "eslint-plugin-no-null": "^1.0.2",
@@ -3622,9 +3622,9 @@
       "dev": true
     },
     "node_modules/deepmerge-ts": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-4.2.1.tgz",
-      "integrity": "sha512-xzJLiUo4z1dD2nggSfaMvHo5qWLoy/JVa9rKuktC6FrQQEBI8Qnj7KwuCYZhqBoGOOpGqs6+3MR2ZhSMcTr4BA==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-4.2.2.tgz",
+      "integrity": "sha512-Ka3Kb21tiWjvQvS9U+1Dx+aqFAHsdTnMdYptLTmC2VAmDFMugWMY1e15aTODstipmCun8iNuqeSfcx6rsUUk0Q==",
       "dev": true,
       "engines": {
         "node": ">=12.4.0"
@@ -4322,28 +4322,31 @@
       "dev": true
     },
     "node_modules/eslint-plugin-functional": {
-      "version": "4.4.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-functional/-/eslint-plugin-functional-4.4.1.tgz",
-      "integrity": "sha512-YhSfHS52Si62Sn126g9wGx+XnWMoWhwEt6ctVXfcJj+xMUiggjOqUVMca7fuLNzX8jYiNBIeU1Y0teHGePZ3NA==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-functional/-/eslint-plugin-functional-5.0.1.tgz",
+      "integrity": "sha512-zwl6daCIlr3ljGg+4mp9+LWoOzgzj3gY04XPa5w6xaEOgNnpmUiZMim0aTlKbuKwfpnpZ7SzpscrtA0/04+ugQ==",
       "dev": true,
+      "funding": [
+        {
+          "type": "ko-fi",
+          "url": "https://ko-fi.com/rebeccastevens"
+        }
+      ],
       "dependencies": {
-        "@typescript-eslint/utils": "^5.10.2",
-        "deepmerge-ts": "^4.0.3",
+        "@typescript-eslint/utils": "^5.49.0",
+        "deepmerge-ts": "^4.2.2",
         "escape-string-regexp": "^4.0.0",
-        "semver": "^7.3.7"
+        "is-immutable-type": "^1.2.4",
+        "semver": "^7.3.8"
       },
       "engines": {
-        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+        "node": ">=16.10.0"
       },
       "peerDependencies": {
         "eslint": "^8.0.0",
-        "tsutils": "^3.0.0",
-        "typescript": "^3.4.1 || ^4.0.0"
+        "typescript": ">=4.0.2"
       },
       "peerDependenciesMeta": {
-        "tsutils": {
-          "optional": true
-        },
         "typescript": {
           "optional": true
         }
@@ -4374,9 +4377,9 @@
       }
     },
     "node_modules/eslint-plugin-functional/node_modules/semver": {
-      "version": "7.3.7",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.7.tgz",
-      "integrity": "sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==",
+      "version": "7.3.8",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.8.tgz",
+      "integrity": "sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==",
       "dev": true,
       "dependencies": {
         "lru-cache": "^6.0.0"
@@ -6411,6 +6414,17 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/is-immutable-type": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/is-immutable-type/-/is-immutable-type-1.2.4.tgz",
+      "integrity": "sha512-H/famjtztrVEl/P9izGTFLEJjmKsDoj+WBMVo+oSSDEuNTZpJFDn37/ovEb+3a3K5UU8zdkVUwBgddeBPH41pA==",
+      "dev": true,
+      "peerDependencies": {
+        "@typescript-eslint/type-utils": ">=5.30.5",
+        "@typescript-eslint/utils": ">=5.30.5",
+        "typescript": ">=4.7.4"
+      }
+    },
     "node_modules/is-installed-globally": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/is-installed-globally/-/is-installed-globally-0.3.2.tgz",
@@ -14306,9 +14320,9 @@
       "dev": true
     },
     "deepmerge-ts": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-4.2.1.tgz",
-      "integrity": "sha512-xzJLiUo4z1dD2nggSfaMvHo5qWLoy/JVa9rKuktC6FrQQEBI8Qnj7KwuCYZhqBoGOOpGqs6+3MR2ZhSMcTr4BA==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-4.2.2.tgz",
+      "integrity": "sha512-Ka3Kb21tiWjvQvS9U+1Dx+aqFAHsdTnMdYptLTmC2VAmDFMugWMY1e15aTODstipmCun8iNuqeSfcx6rsUUk0Q==",
       "dev": true
     },
     "default-require-extensions": {
@@ -15051,15 +15065,16 @@
       }
     },
     "eslint-plugin-functional": {
-      "version": "4.4.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-functional/-/eslint-plugin-functional-4.4.1.tgz",
-      "integrity": "sha512-YhSfHS52Si62Sn126g9wGx+XnWMoWhwEt6ctVXfcJj+xMUiggjOqUVMca7fuLNzX8jYiNBIeU1Y0teHGePZ3NA==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-functional/-/eslint-plugin-functional-5.0.1.tgz",
+      "integrity": "sha512-zwl6daCIlr3ljGg+4mp9+LWoOzgzj3gY04XPa5w6xaEOgNnpmUiZMim0aTlKbuKwfpnpZ7SzpscrtA0/04+ugQ==",
       "dev": true,
       "requires": {
-        "@typescript-eslint/utils": "^5.10.2",
-        "deepmerge-ts": "^4.0.3",
+        "@typescript-eslint/utils": "^5.49.0",
+        "deepmerge-ts": "^4.2.2",
         "escape-string-regexp": "^4.0.0",
-        "semver": "^7.3.7"
+        "is-immutable-type": "^1.2.4",
+        "semver": "^7.3.8"
       },
       "dependencies": {
         "escape-string-regexp": {
@@ -15078,9 +15093,9 @@
           }
         },
         "semver": {
-          "version": "7.3.7",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.7.tgz",
-          "integrity": "sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==",
+          "version": "7.3.8",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.8.tgz",
+          "integrity": "sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==",
           "dev": true,
           "requires": {
             "lru-cache": "^6.0.0"
@@ -16384,6 +16399,13 @@
         }
       }
     },
+    "is-immutable-type": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/is-immutable-type/-/is-immutable-type-1.2.4.tgz",
+      "integrity": "sha512-H/famjtztrVEl/P9izGTFLEJjmKsDoj+WBMVo+oSSDEuNTZpJFDn37/ovEb+3a3K5UU8zdkVUwBgddeBPH41pA==",
+      "dev": true,
+      "requires": {}
+    },
     "is-installed-globally": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/is-installed-globally/-/is-installed-globally-0.3.2.tgz",
diff --git a/package.json b/package.json
index 0fc1391f9f..ee07735095 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "cspell": "^6.2.2",
     "docsify-cli": "^4.3.0",
     "eslint": "^8.23.0",
-    "eslint-plugin-functional": "^4.3.1",
+    "eslint-plugin-functional": "^5.0.1",
     "eslint-plugin-import": "^2.26.0",
     "eslint-plugin-jsdoc": "^39.3.6",
     "eslint-plugin-no-null": "^1.0.2",