diff --git a/package-lock.json b/package-lock.json
index 5203cbf..2fb93fb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "url-join": "^4.0.1"
       },
       "devDependencies": {
-        "@kth/eslint-config-kth": "^3.7.0",
+        "@kth/eslint-config-kth": "^4.0.0",
         "@types/jest": "^30.0.0",
         "body-parser": "^2.2.2",
         "eslint": "^9.39.4",
@@ -129,6 +129,19 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@babel/helper-annotate-as-pure": {
+      "version": "7.27.3",
+      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.27.3.tgz",
+      "integrity": "sha512-fXSwMQqitTGeHLBC08Eq5yXz2m37E4pJX1qAU1+2cNedz/ifv/bVXft90VeSav5nFO61EcNgwr0aJxbyPaWBPg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/types": "^7.27.3"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@babel/helper-compilation-targets": {
       "version": "7.28.6",
       "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.28.6.tgz",
@@ -497,6 +510,96 @@
         "@babel/core": "^7.0.0-0"
       }
     },
+    "node_modules/@babel/plugin-transform-react-display-name": {
+      "version": "7.28.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-react-display-name/-/plugin-transform-react-display-name-7.28.0.tgz",
+      "integrity": "sha512-D6Eujc2zMxKjfa4Zxl4GHMsmhKKZ9VpcqIchJLvwTxad9zWIYulwYItBovpDOoNLISpcZSXoDJ5gaGbQUDqViA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-plugin-utils": "^7.27.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
+    "node_modules/@babel/plugin-transform-react-jsx": {
+      "version": "7.28.6",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-react-jsx/-/plugin-transform-react-jsx-7.28.6.tgz",
+      "integrity": "sha512-61bxqhiRfAACulXSLd/GxqmAedUSrRZIu/cbaT18T1CetkTmtDN15it7i80ru4DVqRK1WMxQhXs+Lf9kajm5Ow==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-annotate-as-pure": "^7.27.3",
+        "@babel/helper-module-imports": "^7.28.6",
+        "@babel/helper-plugin-utils": "^7.28.6",
+        "@babel/plugin-syntax-jsx": "^7.28.6",
+        "@babel/types": "^7.28.6"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
+    "node_modules/@babel/plugin-transform-react-jsx-development": {
+      "version": "7.27.1",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-react-jsx-development/-/plugin-transform-react-jsx-development-7.27.1.tgz",
+      "integrity": "sha512-ykDdF5yI4f1WrAolLqeF3hmYU12j9ntLQl/AOG1HAS21jxyg1Q0/J/tpREuYLfatGdGmXp/3yS0ZA76kOlVq9Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/plugin-transform-react-jsx": "^7.27.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
+    "node_modules/@babel/plugin-transform-react-pure-annotations": {
+      "version": "7.27.1",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-react-pure-annotations/-/plugin-transform-react-pure-annotations-7.27.1.tgz",
+      "integrity": "sha512-JfuinvDOsD9FVMTHpzA/pBLisxpv1aSf+OIV8lgH3MuWrks19R27e6a6DipIg4aX1Zm9Wpb04p8wljfKrVSnPA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-annotate-as-pure": "^7.27.1",
+        "@babel/helper-plugin-utils": "^7.27.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
+    "node_modules/@babel/preset-react": {
+      "version": "7.28.5",
+      "resolved": "https://registry.npmjs.org/@babel/preset-react/-/preset-react-7.28.5.tgz",
+      "integrity": "sha512-Z3J8vhRq7CeLjdC58jLv4lnZ5RKFUJWqH5emvxmv9Hv3BD1T9R/Im713R4MTKwvFaV74ejZ3sM01LyEKk4ugNQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-plugin-utils": "^7.27.1",
+        "@babel/helper-validator-option": "^7.27.1",
+        "@babel/plugin-transform-react-display-name": "^7.28.0",
+        "@babel/plugin-transform-react-jsx": "^7.27.1",
+        "@babel/plugin-transform-react-jsx-development": "^7.27.1",
+        "@babel/plugin-transform-react-pure-annotations": "^7.27.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
     "node_modules/@babel/runtime": {
       "version": "7.28.6",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.28.6.tgz",
@@ -1383,14 +1486,15 @@
       }
     },
     "node_modules/@kth/eslint-config-kth": {
-      "version": "3.7.0",
-      "resolved": "https://registry.npmjs.org/@kth/eslint-config-kth/-/eslint-config-kth-3.7.0.tgz",
-      "integrity": "sha512-0X24d0AzVFdgJwOGMqVlSoZtU/05I1qJdEQV2PriZVQvvvceuqKwYZfroLKBUgu8jWim3Y0VkbQPE58PHeUGMQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@kth/eslint-config-kth/-/eslint-config-kth-4.0.0.tgz",
+      "integrity": "sha512-YK+ZFk55dglmrZEEmtZ6VdgMdxSwx9Pwo/0n1D9cihsgQKSG3qXDmK01I9znWnWkLmIx+iV2o7MH9UBHTg6hpw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "@babel/core": "^7.29.0",
         "@babel/eslint-parser": "^7.28.6",
+        "@babel/preset-react": "^7.28.5",
         "eslint-config-prettier": "^10.1.8",
         "eslint-plugin-import": "^2.32.0",
         "eslint-plugin-jest": "^29.15.0",
@@ -1399,7 +1503,24 @@
         "eslint-plugin-prettier": "^5.5.5",
         "eslint-plugin-react": "^7.37.5",
         "eslint-plugin-react-hooks": "^7.0.1",
-        "eslint-plugin-testing-library": "^7.16.0"
+        "eslint-plugin-testing-library": "^7.16.0",
+        "globals": "^17.4.0"
+      },
+      "peerDependencies": {
+        "eslint": "^9.0.0"
+      }
+    },
+    "node_modules/@kth/eslint-config-kth/node_modules/globals": {
+      "version": "17.5.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-17.5.0.tgz",
+      "integrity": "sha512-qoV+HK2yFl/366t2/Cb3+xxPUo5BuMynomoDmiaZBIdbs+0pYbjfZU+twLhGKp4uCZ/+NbtpVepH5bGCxRyy2g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/@napi-rs/wasm-runtime": {
diff --git a/package.json b/package.json
index 8f669de..6721d9b 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "url-join": "^4.0.1"
   },
   "devDependencies": {
-    "@kth/eslint-config-kth": "^3.7.0",
+    "@kth/eslint-config-kth": "^4.0.0",
     "@types/jest": "^30.0.0",
     "body-parser": "^2.2.2",
     "eslint": "^9.39.4",