diff --git a/.changeset/metal-hornets-jam.md b/.changeset/metal-hornets-jam.md
new file mode 100644
index 00000000..d5e2cbf9
--- /dev/null
+++ b/.changeset/metal-hornets-jam.md
@@ -0,0 +1,5 @@
+---
+"@git-validator/eslint-config": patch
+---
+
+feat(eslint-config): enable `@typescript-eslint/unbound-method`
diff --git a/packages/eslint-config/package.json b/packages/eslint-config/package.json
index 369ca0e3..f938b61f 100644
--- a/packages/eslint-config/package.json
+++ b/packages/eslint-config/package.json
@@ -24,6 +24,7 @@
     "@typescript-eslint/parser": "^6.7.0",
     "eslint-config-prettier": "^9.0.0",
     "eslint-plugin-import": "^2.28.1",
+    "eslint-plugin-jest": "^27.4.0",
     "eslint-plugin-n": "^16.1.0",
     "eslint-plugin-promise": "^6.1.1",
     "eslint-plugin-react-hooks": "^4.6.0",
diff --git a/packages/eslint-config/src/base.js b/packages/eslint-config/src/base.js
index 5fd8f6d2..0b7fb6e7 100644
--- a/packages/eslint-config/src/base.js
+++ b/packages/eslint-config/src/base.js
@@ -1,6 +1,7 @@
 import gitValidatorPlugin from "@git-validator/eslint-plugin";
 import tsPlugin from "@typescript-eslint/eslint-plugin";
 import importPlugin from "eslint-plugin-import";
+import jestPlugin from "eslint-plugin-jest";
 import nPlugin from "eslint-plugin-n";
 import promisePlugin from "eslint-plugin-promise";
 import reactHooksPlugin from "eslint-plugin-react-hooks";
@@ -34,6 +35,7 @@ export default [
       "@git-validator": gitValidatorPlugin,
       "@typescript-eslint": tsPlugin,
       "react-hooks": reactHooksPlugin,
+      jest: jestPlugin,
     },
   },
 ];
diff --git a/packages/eslint-config/src/index.js b/packages/eslint-config/src/index.js
index c7b18260..d1cead09 100644
--- a/packages/eslint-config/src/index.js
+++ b/packages/eslint-config/src/index.js
@@ -3,4 +3,4 @@ import base from "./base.js";
 import jsConfig from "./js-config/index.js";
 import tsConfig from "./ts-config.js";
 
-export default [...base, jsConfig, tsConfig, prettierConfig];
+export default [...base, jsConfig, ...tsConfig, prettierConfig];
diff --git a/packages/eslint-config/src/js-config/index.js b/packages/eslint-config/src/js-config/index.js
index 749eb9de..28654a37 100644
--- a/packages/eslint-config/src/js-config/index.js
+++ b/packages/eslint-config/src/js-config/index.js
@@ -33,7 +33,7 @@ export default {
     ],
     "import/no-self-import": "error",
     "import/no-dynamic-require": "error",
-    "import/no-relative-packages": "error",
+    "import/no-relative-packages": "error", // forbid to import module from other monorepo packages by relative paths
     "import/no-mutable-exports": "error", // forbid code like `export let count = 3`
     // "import/no-named-as-default-member": "error", // forbid code like `import foo from './foo.js'; const bar = foo.bar;`
     "n/prefer-global/process": ["error", "never"],
diff --git a/packages/eslint-config/src/ts-config.js b/packages/eslint-config/src/ts-config.js
index 54fbea6c..a001597c 100644
--- a/packages/eslint-config/src/ts-config.js
+++ b/packages/eslint-config/src/ts-config.js
@@ -99,49 +99,58 @@ function getStrictRules() {
   return {};
 }
 
-export default {
-  files: ["**/*.ts", "**/*.cts", "**/*.mts", "**/*.tsx"],
-  languageOptions: {
-    parser: tsParser,
-    parserOptions: {
-      tsconfigRootDir: process.cwd(),
-      project: tsconfig,
+export default [
+  {
+    files: ["**/*.ts", "**/*.cts", "**/*.mts", "**/*.tsx"],
+    languageOptions: {
+      parser: tsParser,
+      parserOptions: {
+        tsconfigRootDir: process.cwd(),
+        project: tsconfig,
+      },
     },
-  },
-  rules: {
-    ...jsConfig.rules,
-    ...getTsRules(),
-    "no-undef": "off", // https://typescript-eslint.io/linting/troubleshooting/#i-get-errors-from-the-no-undef-rule-about-global-variables-not-being-defined-even-though-there-are-no-typescript-errors
+    rules: {
+      ...jsConfig.rules,
+      ...getTsRules(),
+      "no-undef": "off", // https://typescript-eslint.io/linting/troubleshooting/#i-get-errors-from-the-no-undef-rule-about-global-variables-not-being-defined-even-though-there-are-no-typescript-errors
 
-    // ban some syntaxes to reduce mistakes
-    "@typescript-eslint/ban-types": "error",
-    "@typescript-eslint/consistent-type-assertions": [
-      "error",
-      { assertionStyle: "as", objectLiteralTypeAssertions: "never" },
-    ],
-    "@typescript-eslint/method-signature-style": "error",
-    "@typescript-eslint/no-duplicate-enum-values": "error",
-    "@typescript-eslint/no-duplicate-type-constituents": "error",
-    "@typescript-eslint/no-inferrable-types": "error",
-    "@typescript-eslint/no-require-imports": "error",
-    "@typescript-eslint/no-namespace": "error",
-    "@typescript-eslint/no-misused-new": "error",
-    "@typescript-eslint/no-mixed-enums": "error",
-    "@typescript-eslint/no-import-type-side-effects": "error",
-    "@typescript-eslint/no-floating-promises": ["error", { ignoreVoid: false }],
-    "@typescript-eslint/no-misused-promises": [
-      "error",
-      { checksVoidReturn: { returns: false, arguments: false, variables: false } },
-    ],
-    "@typescript-eslint/await-thenable": "error",
-    "@typescript-eslint/no-unnecessary-type-assertion": "error",
-    "@typescript-eslint/no-unnecessary-condition": "error",
-    // "@typescript-eslint/unbound-method": "error",
+      // ban some syntaxes to reduce mistakes
+      "@typescript-eslint/ban-types": "error",
+      "@typescript-eslint/consistent-type-assertions": [
+        "error",
+        { assertionStyle: "as", objectLiteralTypeAssertions: "never" },
+      ],
+      "@typescript-eslint/method-signature-style": "error",
+      "@typescript-eslint/no-duplicate-enum-values": "error",
+      "@typescript-eslint/no-duplicate-type-constituents": "error",
+      "@typescript-eslint/no-inferrable-types": "error",
+      "@typescript-eslint/no-require-imports": "error",
+      "@typescript-eslint/no-namespace": "error",
+      "@typescript-eslint/no-misused-new": "error",
+      "@typescript-eslint/no-mixed-enums": "error",
+      "@typescript-eslint/no-import-type-side-effects": "error",
+      "@typescript-eslint/no-floating-promises": ["error", { ignoreVoid: false }],
+      "@typescript-eslint/no-misused-promises": [
+        "error",
+        { checksVoidReturn: { returns: false, arguments: false, variables: false } },
+      ],
+      "@typescript-eslint/await-thenable": "error",
+      "@typescript-eslint/no-unnecessary-type-assertion": "error",
+      "@typescript-eslint/no-unnecessary-condition": "error",
+      "@typescript-eslint/unbound-method": "error",
 
-    "@git-validator/no-const-enum": "error",
-    "@git-validator/no-declares-in-ts-file": "error",
-    "@git-validator/no-export-assignment": "error",
+      "@git-validator/no-const-enum": "error",
+      "@git-validator/no-declares-in-ts-file": "error",
+      "@git-validator/no-export-assignment": "error",
 
-    ...getStrictRules(),
+      ...getStrictRules(),
+    },
+  },
+  {
+    files: ["**/*.{test,spec}.?([cm])ts", "**/*.{test,spec}.tsx"],
+    rules: {
+      "@typescript-eslint/unbound-method": "off",
+      "jest/unbound-method": "error",
+    },
   },
-};
+];