diff --git a/.eslintrc.json b/.eslintrc.json
deleted file mode 100644
index 85711b8..0000000
--- a/.eslintrc.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "env": {
-        "browser": true,
-        "commonjs": true,
-        "es2021": true,
-        "node": true,
-        "mocha": true
-    },
-    "extends": [
-        "airbnb-base"
-    ],
-    "parserOptions": {
-        "ecmaVersion": 13
-    },
-    "rules": {
-        "no-console": 0,
-        "no-param-reassign": 0,
-        "max-len": ["error", { "code": 150 }],
-        "prefer-destructuring": ["error", {"object": true, "array": false}],
-        "no-underscore-dangle": 0
-    }
-}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 158c976..d14d4dc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,8 +23,6 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - run: npm ci
     - run: npm run coverage
-    - run: npm test
-
     - name: Coveralls
       uses: coverallsapp/github-action@master
       with:
diff --git a/.npmignore b/.npmignore
index 35c1163..c72b53c 100644
--- a/.npmignore
+++ b/.npmignore
@@ -6,6 +6,7 @@
 .eslintrc.json
 .nyc_output
 .travis.yml
+eslint.config.mjs
 CHANGELOG.md
 LICENSE
 README.md
diff --git a/package-lock.json b/package-lock.json
index 6ab7654..9b7587b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,17 +9,16 @@
       "version": "0.9.0",
       "license": "MIT",
       "dependencies": {
-        "@digipolis/log": "^1.1.0"
+        "@digipolis/log": "^1.1.1"
       },
       "devDependencies": {
-        "@eslint/js": "^9.31.0",
-        "axios": "^1.10.0",
+        "@eslint/js": "^9.33.0",
+        "axios": "^1.11.0",
         "c8": "^10.1.3",
-        "chai": "^5.2.1",
-        "chai-json-schema": "^1.5.1",
         "eslint-plugin-mocha": "^11.1.0",
         "express": "^5.1.0",
         "globals": "^16.3.0",
+        "jsonschema": "^1.5.0",
         "mocha": "^11.7.1",
         "sinon": "^21.0.0"
       }
@@ -35,9 +34,10 @@
       }
     },
     "node_modules/@digipolis/log": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@digipolis/log/-/log-1.1.0.tgz",
-      "integrity": "sha512-RffQvAdDOkxzO5MzheMTvlq3Bifq91ZrESmh2bGtig8X+AyUj4ZuvGU5Kq1TbxCxSrAvr4zm/TI6jP7WaIqo8g=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@digipolis/log/-/log-1.1.1.tgz",
+      "integrity": "sha512-DZ2tf8H843UvK6wpGOxoCxfDnzaLwPtUIglYrl77uJKLgF7sGBwwJsBAe1ENxhl+ci7aUHjYfydrRoJaGsUTgg==",
+      "license": "MIT"
     },
     "node_modules/@eslint-community/eslint-utils": {
       "version": "4.7.0",
@@ -163,9 +163,9 @@
       }
     },
     "node_modules/@eslint/js": {
-      "version": "9.31.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.31.0.tgz",
-      "integrity": "sha512-LOm5OVt7D4qiKCqoiPbA7LWmI+tbw1VbTUowBcUMgQSuM6poJufkFkYDcQpo5KfgD39TnNySV26QjOh7VFpSyw==",
+      "version": "9.33.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.33.0.tgz",
+      "integrity": "sha512-5K1/mKhWaMfreBGJTwval43JJmkip0RmM+3+IuqupeSKNC/Th2Kc7ucaq5ovTSra/OOKB9c58CGSz3QMVbWt0A==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -600,16 +600,6 @@
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "dev": true
     },
-    "node_modules/assertion-error": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
-      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -617,14 +607,14 @@
       "dev": true
     },
     "node_modules/axios": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.10.0.tgz",
-      "integrity": "sha512-/1xYAC4MP/HEG+3duIhFr4ZQXR4sQXOIe+o6sdqzeykGLx6Upp/1p8MHqhINOvGeP7xyNHe7tsiJByc4SSVUxw==",
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.11.0.tgz",
+      "integrity": "sha512-1Lx3WLFQWm3ooKDYZD1eXmoGO9fxYQjrycfHFC8P0sCfQVXyROp0p9PFWBehewBOdCwHc+f/b8I0fMto5eSfwA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "follow-redirects": "^1.15.6",
-        "form-data": "^4.0.0",
+        "form-data": "^4.0.4",
         "proxy-from-env": "^1.1.0"
       }
     },
@@ -771,39 +761,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/chai": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-5.2.1.tgz",
-      "integrity": "sha512-5nFxhUrX0PqtyogoYOA8IPswy5sZFTOsBFl/9bNsmDLgsxYTzSZQJDPppDnZPTQbzSEm0hqGjWPzRemQCYbD6A==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "assertion-error": "^2.0.1",
-        "check-error": "^2.1.1",
-        "deep-eql": "^5.0.1",
-        "loupe": "^3.1.0",
-        "pathval": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/chai-json-schema": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/chai-json-schema/-/chai-json-schema-1.5.1.tgz",
-      "integrity": "sha512-TR/xPDxRhqwFFCWg1HgL8nNWbpNfUwaib6pBN++QKpnd0t+o3+MBvAn5CM1mpdUMaM76oJAtUjGKdjGad01lIA==",
-      "dev": true,
-      "dependencies": {
-        "jsonpointer.js": "0.4.0",
-        "tv4": "^1.3.0"
-      },
-      "engines": {
-        "node": ">= 6"
-      },
-      "peerDependencies": {
-        "chai": ">= 1.6.1 < 5"
-      }
-    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -820,16 +777,6 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
-    "node_modules/check-error": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
-      "integrity": "sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 16"
-      }
-    },
     "node_modules/chokidar": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
@@ -981,16 +928,6 @@
         }
       }
     },
-    "node_modules/deep-eql": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.2.tgz",
-      "integrity": "sha512-h5k/5U50IJJFpzfL6nO9jaaumfjO/f2NjK/oYB2Djzm4p9L+3T9qWpZqZ2hAbLPuuYq9wrU08WQyBTL5GbPk5Q==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/deep-is": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz",
@@ -2055,11 +1992,15 @@
       "license": "MIT",
       "peer": true
     },
-    "node_modules/jsonpointer.js": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/jsonpointer.js/-/jsonpointer.js-0.4.0.tgz",
-      "integrity": "sha1-ACyxI/dnqv3rAZYTLOXE+ZQcyro=",
-      "dev": true
+    "node_modules/jsonschema": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/jsonschema/-/jsonschema-1.5.0.tgz",
+      "integrity": "sha512-K+A9hhqbn0f3pJX17Q/7H6yQfD/5OXgdrR5UE12gMXCiN9D5Xq2o5mddV2QEcX/bjla99ASsAAQUyMCCRWAEhw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "*"
+      }
     },
     "node_modules/keyv": {
       "version": "4.5.4",
@@ -2133,13 +2074,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/loupe": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.3.tgz",
-      "integrity": "sha512-kkIp7XSkP78ZxJEsSxW3712C6teJVoeHHwgo9zJ380de7IYyJ2ISlxojcH2pC5OFLewESmnRi/+XCDIEEVyoug==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/lru-cache": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
@@ -2525,16 +2459,6 @@
         "node": ">=16"
       }
     },
-    "node_modules/pathval": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
-      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 14.16"
-      }
-    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -3054,15 +2978,6 @@
         "node": ">=0.6"
       }
     },
-    "node_modules/tv4": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/tv4/-/tv4-1.3.0.tgz",
-      "integrity": "sha1-0CDIRvrdUMhVq7JeuuzGj8EPeWM=",
-      "dev": true,
-      "engines": {
-        "node": ">= 0.8.0"
-      }
-    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -3336,9 +3251,9 @@
       "dev": true
     },
     "@digipolis/log": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@digipolis/log/-/log-1.1.0.tgz",
-      "integrity": "sha512-RffQvAdDOkxzO5MzheMTvlq3Bifq91ZrESmh2bGtig8X+AyUj4ZuvGU5Kq1TbxCxSrAvr4zm/TI6jP7WaIqo8g=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@digipolis/log/-/log-1.1.1.tgz",
+      "integrity": "sha512-DZ2tf8H843UvK6wpGOxoCxfDnzaLwPtUIglYrl77uJKLgF7sGBwwJsBAe1ENxhl+ci7aUHjYfydrRoJaGsUTgg=="
     },
     "@eslint-community/eslint-utils": {
       "version": "4.7.0",
@@ -3421,9 +3336,9 @@
       }
     },
     "@eslint/js": {
-      "version": "9.31.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.31.0.tgz",
-      "integrity": "sha512-LOm5OVt7D4qiKCqoiPbA7LWmI+tbw1VbTUowBcUMgQSuM6poJufkFkYDcQpo5KfgD39TnNySV26QjOh7VFpSyw==",
+      "version": "9.33.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.33.0.tgz",
+      "integrity": "sha512-5K1/mKhWaMfreBGJTwval43JJmkip0RmM+3+IuqupeSKNC/Th2Kc7ucaq5ovTSra/OOKB9c58CGSz3QMVbWt0A==",
       "dev": true
     },
     "@eslint/object-schema": {
@@ -3730,12 +3645,6 @@
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "dev": true
     },
-    "assertion-error": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
-      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
-      "dev": true
-    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -3743,13 +3652,13 @@
       "dev": true
     },
     "axios": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.10.0.tgz",
-      "integrity": "sha512-/1xYAC4MP/HEG+3duIhFr4ZQXR4sQXOIe+o6sdqzeykGLx6Upp/1p8MHqhINOvGeP7xyNHe7tsiJByc4SSVUxw==",
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.11.0.tgz",
+      "integrity": "sha512-1Lx3WLFQWm3ooKDYZD1eXmoGO9fxYQjrycfHFC8P0sCfQVXyROp0p9PFWBehewBOdCwHc+f/b8I0fMto5eSfwA==",
       "dev": true,
       "requires": {
         "follow-redirects": "^1.15.6",
-        "form-data": "^4.0.0",
+        "form-data": "^4.0.4",
         "proxy-from-env": "^1.1.0"
       }
     },
@@ -3851,29 +3760,6 @@
       "integrity": "sha512-tVI4q5jjFV5CavAU8DXfza/TJcZutVKo/5Foskmsqcm0MsL91moHvwiGNnqaa2o6PF/7yT5ikDRcVcl8Rj6LCA==",
       "dev": true
     },
-    "chai": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-5.2.1.tgz",
-      "integrity": "sha512-5nFxhUrX0PqtyogoYOA8IPswy5sZFTOsBFl/9bNsmDLgsxYTzSZQJDPppDnZPTQbzSEm0hqGjWPzRemQCYbD6A==",
-      "dev": true,
-      "requires": {
-        "assertion-error": "^2.0.1",
-        "check-error": "^2.1.1",
-        "deep-eql": "^5.0.1",
-        "loupe": "^3.1.0",
-        "pathval": "^2.0.0"
-      }
-    },
-    "chai-json-schema": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/chai-json-schema/-/chai-json-schema-1.5.1.tgz",
-      "integrity": "sha512-TR/xPDxRhqwFFCWg1HgL8nNWbpNfUwaib6pBN++QKpnd0t+o3+MBvAn5CM1mpdUMaM76oJAtUjGKdjGad01lIA==",
-      "dev": true,
-      "requires": {
-        "jsonpointer.js": "0.4.0",
-        "tv4": "^1.3.0"
-      }
-    },
     "chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -3884,12 +3770,6 @@
         "supports-color": "^7.1.0"
       }
     },
-    "check-error": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/check-error/-/check-error-2.1.1.tgz",
-      "integrity": "sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==",
-      "dev": true
-    },
     "chokidar": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
@@ -3994,12 +3874,6 @@
         "ms": "^2.1.3"
       }
     },
-    "deep-eql": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-5.0.2.tgz",
-      "integrity": "sha512-h5k/5U50IJJFpzfL6nO9jaaumfjO/f2NjK/oYB2Djzm4p9L+3T9qWpZqZ2hAbLPuuYq9wrU08WQyBTL5GbPk5Q==",
-      "dev": true
-    },
     "deep-is": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz",
@@ -4735,10 +4609,10 @@
       "dev": true,
       "peer": true
     },
-    "jsonpointer.js": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/jsonpointer.js/-/jsonpointer.js-0.4.0.tgz",
-      "integrity": "sha1-ACyxI/dnqv3rAZYTLOXE+ZQcyro=",
+    "jsonschema": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/jsonschema/-/jsonschema-1.5.0.tgz",
+      "integrity": "sha512-K+A9hhqbn0f3pJX17Q/7H6yQfD/5OXgdrR5UE12gMXCiN9D5Xq2o5mddV2QEcX/bjla99ASsAAQUyMCCRWAEhw==",
       "dev": true
     },
     "keyv": {
@@ -4794,12 +4668,6 @@
         "is-unicode-supported": "^0.1.0"
       }
     },
-    "loupe": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/loupe/-/loupe-3.1.3.tgz",
-      "integrity": "sha512-kkIp7XSkP78ZxJEsSxW3712C6teJVoeHHwgo9zJ380de7IYyJ2ISlxojcH2pC5OFLewESmnRi/+XCDIEEVyoug==",
-      "dev": true
-    },
     "lru-cache": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
@@ -5069,12 +4937,6 @@
       "integrity": "sha512-TdrF7fW9Rphjq4RjrW0Kp2AW0Ahwu9sRGTkS6bvDi0SCwZlEZYmcfDbEsTz8RVk0EHIS/Vd1bv3JhG+1xZuAyQ==",
       "dev": true
     },
-    "pathval": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/pathval/-/pathval-2.0.0.tgz",
-      "integrity": "sha512-vE7JKRyES09KiunauX7nd2Q9/L7lhok4smP9RZTDeD4MVs72Dp2qNFVz39Nz5a0FVEW0BJR6C0DYrq6unoziZA==",
-      "dev": true
-    },
     "picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -5434,12 +5296,6 @@
       "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
       "dev": true
     },
-    "tv4": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/tv4/-/tv4-1.3.0.tgz",
-      "integrity": "sha1-0CDIRvrdUMhVq7JeuuzGj8EPeWM=",
-      "dev": true
-    },
     "type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
diff --git a/package.json b/package.json
index 58347bb..c37734d 100644
--- a/package.json
+++ b/package.json
@@ -23,23 +23,17 @@
   "author": "Olivier Van den Mooter",
   "license": "MIT",
   "dependencies": {
-    "@digipolis/log": "^1.1.0"
+    "@digipolis/log": "^1.1.1"
   },
   "devDependencies": {
-    "@eslint/js": "^9.31.0",
+    "@eslint/js": "^9.33.0",
     "eslint-plugin-mocha": "^11.1.0",
-    "axios": "^1.10.0",
+    "axios": "^1.11.0",
     "c8": "^10.1.3",
-    "chai": "^5.2.1",
-    "chai-json-schema": "^1.5.1",
+    "jsonschema": "^1.5.0",
     "express": "^5.1.0",
     "globals": "^16.3.0",
     "mocha": "^11.7.1",
     "sinon": "^21.0.0"
-  },
-  "overrides": {
-    "chai-json-schema": {
-      "chai": "^5.2.0"
-    }
   }
 }
diff --git a/test/config.test.js b/test/config.test.js
index eb56152..4899d76 100644
--- a/test/config.test.js
+++ b/test/config.test.js
@@ -1,21 +1,21 @@
-const { expect } = require('chai');
+const assert = require('node:assert/strict');
 const { setBooleanValue } = require('../lib/helpers/config');
 
 describe('Config Helper', () => {
   describe('setBooleanValue', () => {
-    it('undefined should result in true', () => expect(setBooleanValue(undefined, true)).to.equal(true));
-    it('true should result in true', () => expect(setBooleanValue(true)).to.equal(true));
-    it('\'true\' should result in true', () => expect(setBooleanValue('true')).to.equal(true));
-    it('false should result in false', () => expect(setBooleanValue(false)).to.equal(false));
-    it('\'false\' should result in false', () => expect(setBooleanValue('false')).to.equal(false));
-    it('default true, false should result in false', () => expect(setBooleanValue(false, true)).to.equal(false));
-    it('default true, \'false\' should result in false', () => expect(setBooleanValue('false', true)).to.equal(false));
-    it('default true, \'true\' should result in true', () => expect(setBooleanValue('true', true)).to.equal(true));
-    it('default false, \'false\' should result in false', () => expect(setBooleanValue('false', false)).to.equal(false));
-    it('default false, \'true\' should result in true', () => expect(setBooleanValue('true', false)).to.equal(true));
-    it('default false, \'\' should result in true', () => expect(setBooleanValue('', false)).to.equal(false));
-    it('default true, \'\' should result in true', () => expect(setBooleanValue('', true)).to.equal(true));
-    it('default true, \'nonbool\' should result in true', () => expect(setBooleanValue('nonbool', true)).to.equal(true));
-    it('default false, \'nonbool\' should result in false', () => expect(setBooleanValue('nonbool', false)).to.equal(false));
+    it('undefined should result in true', () => assert.equal(setBooleanValue(undefined, true) ,true));
+    it('true should result in true', () => assert.equal(setBooleanValue(true) ,true));
+    it('\'true\' should result in true', () => assert.equal(setBooleanValue('true') ,true));
+    it('false should result in false', () => assert.equal(setBooleanValue(false) ,false));
+    it('\'false\' should result in false', () => assert.equal(setBooleanValue('false') ,false));
+    it('default true, false should result in false', () => assert.equal(setBooleanValue(false, true) ,false));
+    it('default true, \'false\' should result in false', () => assert.equal(setBooleanValue('false', true) ,false));
+    it('default true, \'true\' should result in true', () => assert.equal(setBooleanValue('true', true) ,true));
+    it('default false, \'false\' should result in false', () => assert.equal(setBooleanValue('false', false) ,false));
+    it('default false, \'true\' should result in true', () => assert.equal(setBooleanValue('true', false) ,true));
+    it('default false, \'\' should result in true', () => assert.equal(setBooleanValue('', false) ,false));
+    it('default true, \'\' should result in true', () => assert.equal(setBooleanValue('', true) ,true));
+    it('default true, \'nonbool\' should result in true', () => assert.equal(setBooleanValue('nonbool', true) ,true));
+    it('default false, \'nonbool\' should result in false', () => assert.equal(setBooleanValue('nonbool', false) ,false));
   });
 });
diff --git a/test/helpers/server.js b/test/helpers/server.js
index d925a20..0b3534b 100644
--- a/test/helpers/server.js
+++ b/test/helpers/server.js
@@ -30,6 +30,7 @@ function initializeExpress(config) {
   });
   app.enable('trust proxy');
 }
+
 function startListening() {
   return new Promise((resolve) => {
     server = app.listen(undefined, () => {
diff --git a/test/request.logger.test.js b/test/request.logger.test.js
index ecca791..98531a5 100644
--- a/test/request.logger.test.js
+++ b/test/request.logger.test.js
@@ -1,18 +1,14 @@
+const assert = require('node:assert/strict');
 const https = require('https');
 const http = require('http');
 const { URL } = require('url');
 const sinon = require('sinon');
 const axios = require('axios');
-const chai = require('chai');
-
-const { expect } = chai;
 
 const { requestlogger } = require('../lib');
 const app = require('./helpers/server');
 const fetchTest = parseInt( process.version.split('.')[0].split('v')[1], 10) >= 20;
 
-chai.use(require('chai-json-schema'));
-
 describe('Requestlog:', () => {
   let server;
   let sandbox;
@@ -86,7 +82,7 @@ describe('Requestlog:', () => {
         }
       );
       const body = await request.json();
-      expect(body).to.eql({ ok: 'ok' })
+      assert.deepStrictEqual(body, { ok: 'ok' })
       return new Promise((resolve) => {
         setTimeout(() => {
           sinon.assert.calledWith(logspy, {
@@ -117,7 +113,7 @@ describe('Requestlog:', () => {
         }
       );
       const body = await request.text();
-      expect(body).to.eql('{"ok":"ok"}')
+      assert.deepStrictEqual(body, '{"ok":"ok"}')
       return new Promise((resolve) => {
         setTimeout(() => {
           sinon.assert.calledWith(logspy, {
@@ -144,7 +140,7 @@ describe('Requestlog:', () => {
     };
     const req = https.request(options);
     req.end();
-    chai.expect(req.constructor.name).to.eql('ClientRequest');
+    assert.deepStrictEqual(req.constructor.name, 'ClientRequest')
   });
   it('url of type URL', async () => {
     const options = {
@@ -154,7 +150,7 @@ describe('Requestlog:', () => {
     };
     const req = https.request(new URL('https://google.be'), options);
     req.end();
-    chai.expect(req.constructor.name).to.eql('ClientRequest');
+    assert.deepStrictEqual(req.constructor.name, 'ClientRequest')
   });
   it('url of type URL localhost', async () => {
     delete require.cache[require.resolve('http')];
diff --git a/test/request.middleware.test.js b/test/request.middleware.test.js
index c599a4e..d886841 100644
--- a/test/request.middleware.test.js
+++ b/test/request.middleware.test.js
@@ -1,13 +1,11 @@
+const assert = require('node:assert/strict');
 const sinon = require('sinon');
 const axios = require('axios');
-const chai = require('chai');
-chai.use(require('chai-json-schema'));
+const { Validator } = require('jsonschema');
 const logschema = require('./data/logschema.json');
-const app = require('./helpers/server');
+const app = require('./helpers/server.js');
 
-const { expect } = chai;
-
-chai.use(require('chai-json-schema'));
+const validator = new Validator();
 
 describe('middleware:', () => {
   let server;
@@ -275,12 +273,12 @@ describe('middleware:', () => {
       },
       protocol: 'http',
     };
-    // replace sinson match timestamp for jsonschema
+    // replace sinon match timestamp for jsonschema
     const schema_check = {
       ...result,
-      timestamp: 'timestamp'
+      timestamp: new Date().toISOString(),
     }
-    expect(schema_check).to.be.jsonSchema(logschema);
+    assert.equal(validator.validate(schema_check, logschema).valid ,true)
     sinon.assert.calledWith(logspy, result);
     clock.restore();
   });
diff --git a/test/requestdecoder.test.js b/test/requestdecoder.test.js
index feae267..60073f2 100644
--- a/test/requestdecoder.test.js
+++ b/test/requestdecoder.test.js
@@ -1,9 +1,8 @@
-const chai = require('chai');
-
-const { getHost } = require('../lib/helpers/requestdecoder');
+const assert = require('node:assert/strict');
+const { getHost } = require('../lib/helpers/requestdecoder.js');
 
 describe('requestdecoder:', () => {
   it('getHost', async () => {
-    chai.expect(getHost({ host: 'host' })).to.eql('host');
+    assert.equal(getHost({ host: 'host' }), 'host');
   });
 });