diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index 622d7a7..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1,3 +0,0 @@
-node_modules
-package.json
-build
diff --git a/.eslintrc b/.eslintrc
deleted file mode 100644
index 41a3ed2..0000000
--- a/.eslintrc
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "ecmaVersion": 12,
-    "sourceType": "module"
-  },
-  "plugins": ["prettier", "@typescript-eslint"],
-  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"],
-  "env": {
-    "es6": true,
-    "node": true
-  },
-  "rules": {
-    "prettier/prettier": "error",
-    "@typescript-eslint/no-unused-vars": ["warn", { "ignoreRestSiblings": true }],
-    "no-console": 2
-  },
-  "overrides": [
-    {
-      "files": ["**/*.test.ts", "test/**/*.ts"],
-      "rules": {
-        "prettier/prettier": "error",
-        "@typescript-eslint/no-explicit-any": "off"
-      },
-      "env": {
-        "mocha": true
-      }
-    }
-  ]
-}
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..40a2aa1
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,66 @@
+import prettier from 'eslint-plugin-prettier'
+import typescriptEslint from '@typescript-eslint/eslint-plugin'
+import globals from 'globals'
+import tsParser from '@typescript-eslint/parser'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+import js from '@eslint/js'
+import { FlatCompat } from '@eslint/eslintrc'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+})
+
+export default [
+  {
+    ignores: ['**/node_modules', '**/package.json', '**/build'],
+  },
+  ...compat.extends('eslint:recommended', 'plugin:@typescript-eslint/recommended', 'prettier'),
+  {
+    plugins: {
+      prettier,
+      '@typescript-eslint': typescriptEslint,
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+      },
+
+      parser: tsParser,
+      ecmaVersion: 12,
+      sourceType: 'module',
+    },
+
+    rules: {
+      'prettier/prettier': 'error',
+
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        {
+          ignoreRestSiblings: true,
+        },
+      ],
+
+      'no-console': 2,
+    },
+  },
+  {
+    files: ['**/*.test.ts', 'test/**/*.ts'],
+
+    languageOptions: {
+      globals: {
+        ...globals.mocha,
+      },
+    },
+
+    rules: {
+      'prettier/prettier': 'error',
+      '@typescript-eslint/no-explicit-any': 'off',
+    },
+  },
+]
diff --git a/package-lock.json b/package-lock.json
index a4e427a..cd9890c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@digicatapult/sqnc-hyproof-api",
-  "version": "0.13.114",
+  "version": "0.13.115",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@digicatapult/sqnc-hyproof-api",
-      "version": "0.13.114",
+      "version": "0.13.115",
       "license": "Apache-2.0",
       "dependencies": {
         "@polkadot/api": "^13.2.1",
@@ -32,6 +32,8 @@
       },
       "devDependencies": {
         "@digicatapult/tsimp": "^2.0.12",
+        "@eslint/eslintrc": "^3.1.0",
+        "@eslint/js": "^9.11.1",
         "@polkadot/types": "^13.2.1",
         "@types/chai": "^5.0.0",
         "@types/cors": "^2.8.17",
@@ -48,9 +50,10 @@
         "chai": "^5.1.1",
         "concurrently": "^9.0.1",
         "depcheck": "^1.4.7",
-        "eslint": "^8.57.1",
+        "eslint": "^9.11.1",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-prettier": "^5.2.1",
+        "globals": "^15.9.0",
         "mocha": "^10.7.3",
         "nodemon": "^3.1.7",
         "pino-colada": "^2.2.2",
@@ -371,6 +374,16 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@babel/traverse/node_modules/globals": {
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/@babel/types": {
       "version": "7.23.3",
       "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.23.3.tgz",
@@ -535,24 +548,75 @@
       }
     },
     "node_modules/@eslint-community/regexpp": {
-      "version": "4.10.0",
-      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.10.0.tgz",
-      "integrity": "sha512-Cu96Sd2By9mCNTx2iyKOmq10v22jUVQv0lQnlGNy16oE9589yE+QADPbrMGCkA51cKZSg3Pu/aTJVTGfL/qjUA==",
+      "version": "4.11.1",
+      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.11.1.tgz",
+      "integrity": "sha512-m4DVN9ZqskZoLU5GlWZadwDnYo3vAEydiUayB9widCl9ffWx2IvPnp6n3on5rJmziJSw9Bv+Z3ChDVdMwXCY8Q==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
       }
     },
+    "node_modules/@eslint/config-array": {
+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/@eslint/config-array/-/config-array-0.18.0.tgz",
+      "integrity": "sha512-fTxvnS1sRMu3+JjXwJG0j/i4RT9u4qJ+lqS/yCGap4lH4zZGzQ7tu+xZqQmcMZq5OBZDL4QRxQzRjkWcGt8IVw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@eslint/object-schema": "^2.1.4",
+        "debug": "^4.3.1",
+        "minimatch": "^3.1.2"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      }
+    },
+    "node_modules/@eslint/config-array/node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "node_modules/@eslint/config-array/node_modules/minimatch": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^1.1.7"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/@eslint/core": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/@eslint/core/-/core-0.6.0.tgz",
+      "integrity": "sha512-8I2Q8ykA4J0x0o7cg67FPVnehcqWTBehu/lmY+bolPFHGjh49YzGBMXTvpqVgEbBdvNCSxj6iFgiIyHzf03lzg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      }
+    },
     "node_modules/@eslint/eslintrc": {
-      "version": "2.1.4",
-      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.1.4.tgz",
-      "integrity": "sha512-269Z39MS6wVJtsoUl10L60WdkhJVdPG24Q4eZTH3nnF6lpvSShEK3wQjDX9JRWAUPvPh7COouPpU9IrqaZFvtQ==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-3.1.0.tgz",
+      "integrity": "sha512-4Bfj15dVJdoy3RfZmmo86RK1Fwzn6SstsvK9JS+BaVKqC6QQQQyXekNaC+g+LKNgkQ+2VhGAzm6hO40AhMR3zQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "ajv": "^6.12.4",
         "debug": "^4.3.2",
-        "espree": "^9.6.0",
-        "globals": "^13.19.0",
+        "espree": "^10.0.1",
+        "globals": "^14.0.0",
         "ignore": "^5.2.0",
         "import-fresh": "^3.2.1",
         "js-yaml": "^4.1.0",
@@ -560,7 +624,7 @@
         "strip-json-comments": "^3.1.1"
       },
       "engines": {
-        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "url": "https://opencollective.com/eslint"
@@ -583,15 +647,13 @@
       }
     },
     "node_modules/@eslint/eslintrc/node_modules/globals": {
-      "version": "13.23.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-13.23.0.tgz",
-      "integrity": "sha512-XAmF0RjlrjY23MA51q3HltdlGxUpXPvg0GioKiD9X6HD28iMjo2dKC8Vqwm7lne4GNr78+RHTfliktR6ZH09wA==",
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
+      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
       "dev": true,
-      "dependencies": {
-        "type-fest": "^0.20.2"
-      },
+      "license": "MIT",
       "engines": {
-        "node": ">=8"
+        "node": ">=18"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
@@ -622,13 +684,36 @@
       }
     },
     "node_modules/@eslint/js": {
-      "version": "8.57.1",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.57.1.tgz",
-      "integrity": "sha512-d9zaMRSTIKDLhctzH12MtXvJKSSUhaHcjV+2Z+GK+EEY7XKpP5yR4x+N3TAcHTcu963nIr+TMcCb4DBCYX1z6Q==",
+      "version": "9.11.1",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.11.1.tgz",
+      "integrity": "sha512-/qu+TWz8WwPWc7/HcIJKi+c+MOm46GdVaSlTTQcaqaL53+GsoA6MxWp5PtTx48qbSP7ylM1Kn7nhvkugfJvRSA==",
       "dev": true,
       "license": "MIT",
       "engines": {
-        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      }
+    },
+    "node_modules/@eslint/object-schema": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@eslint/object-schema/-/object-schema-2.1.4.tgz",
+      "integrity": "sha512-BsWiH1yFGjXXS2yvrf5LyuoSIIbPrGUWob917o+BTKuZ7qJdxX8aJLRxs1fS9n6r7vESrq1OUqb68dANcFXuQQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      }
+    },
+    "node_modules/@eslint/plugin-kit": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/@eslint/plugin-kit/-/plugin-kit-0.2.0.tgz",
+      "integrity": "sha512-vH9PiIMMwvhCx31Af3HiGzsVNULDbyVkHXwlemn/B0TFj/00ho3y55efXrUZTfQipxoHC5u4xq6zblww1zm1Ig==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "levn": "^0.4.1"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@hapi/accept": {
@@ -918,44 +1003,6 @@
         "@hapi/hoek": "^11.0.2"
       }
     },
-    "node_modules/@humanwhocodes/config-array": {
-      "version": "0.13.0",
-      "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.13.0.tgz",
-      "integrity": "sha512-DZLEEqFWQFiyK6h5YIeynKx7JlvCYWL0cImfSRXZ9l4Sg2efkFGTuFf6vzXjK1cq6IYkU+Eg/JizXw+TD2vRNw==",
-      "deprecated": "Use @eslint/config-array instead",
-      "dev": true,
-      "license": "Apache-2.0",
-      "dependencies": {
-        "@humanwhocodes/object-schema": "^2.0.3",
-        "debug": "^4.3.1",
-        "minimatch": "^3.0.5"
-      },
-      "engines": {
-        "node": ">=10.10.0"
-      }
-    },
-    "node_modules/@humanwhocodes/config-array/node_modules/brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
-      "dependencies": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
-    "node_modules/@humanwhocodes/config-array/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "dev": true,
-      "dependencies": {
-        "brace-expansion": "^1.1.7"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/@humanwhocodes/module-importer": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/module-importer/-/module-importer-1.0.1.tgz",
@@ -969,13 +1016,19 @@
         "url": "https://github.com/sponsors/nzakas"
       }
     },
-    "node_modules/@humanwhocodes/object-schema": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/@humanwhocodes/object-schema/-/object-schema-2.0.3.tgz",
-      "integrity": "sha512-93zYdMES/c1D69yZiKDBj0V24vqNzB/koF26KPaagAfd3P/4gUlh3Dys5ogAK+Exi9QyzlD8x/08Zt7wIKcDcA==",
-      "deprecated": "Use @eslint/object-schema instead",
+    "node_modules/@humanwhocodes/retry": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@humanwhocodes/retry/-/retry-0.3.0.tgz",
+      "integrity": "sha512-d2CGZR2o7fS6sWB7DG/3a95bGKQyHMACZ5aW8qGkkqQpUoZV6C0X7Pc7l4ZNMZkfNBf4VWNe9E1jRsf0G146Ew==",
       "dev": true,
-      "license": "BSD-3-Clause"
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18.18"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/nzakas"
+      }
     },
     "node_modules/@isaacs/cached": {
       "version": "1.0.1",
@@ -3331,6 +3384,13 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/estree": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.6.tgz",
+      "integrity": "sha512-AYnb1nQyY49te+VRAVgmzfcgjYS91mY5P0TKUDCLEM+gNnA+3T6rWITXRLYCpahpqSQbN5cE+gHpnPyXjHWxcw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/express": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.21.tgz",
@@ -3363,6 +3423,13 @@
       "resolved": "https://registry.npmjs.org/@types/http-errors/-/http-errors-2.0.4.tgz",
       "integrity": "sha512-D0CFMMtydbJAegzOyHjtiKPLlvnm3iTZyZRSZoLq2mRhDdmLfIWOCYPfQJ4cu2erKghU++QvjcUjp/5h7hESpA=="
     },
+    "node_modules/@types/json-schema": {
+      "version": "7.0.15",
+      "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
+      "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/keygrip": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/@types/keygrip/-/keygrip-1.0.6.tgz",
@@ -3736,12 +3803,6 @@
         "url": "https://opencollective.com/typescript-eslint"
       }
     },
-    "node_modules/@ungap/structured-clone": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/@ungap/structured-clone/-/structured-clone-1.2.0.tgz",
-      "integrity": "sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==",
-      "dev": true
-    },
     "node_modules/@vue/compiler-core": {
       "version": "3.3.8",
       "resolved": "https://registry.npmjs.org/@vue/compiler-core/-/compiler-core-3.3.8.tgz",
@@ -3841,10 +3902,11 @@
       }
     },
     "node_modules/acorn": {
-      "version": "8.11.2",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.11.2.tgz",
-      "integrity": "sha512-nc0Axzp/0FILLEVsm4fNwLCwMttvhEI263QtVPQcbpfZZ3ts0hLsZGOpE6czNlid7CJ9MlyH8reXkpsf3YUY4w==",
+      "version": "8.12.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.12.1.tgz",
+      "integrity": "sha512-tcpGyI9zbizT9JbV6oYE477V6mTlXvvi0T0G3SNIYE2apm/G5huBa1+K89VGeovbg+jycCrfhl3ADxErOuO6Jg==",
       "dev": true,
+      "license": "MIT",
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -3857,6 +3919,7 @@
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
       "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
       "dev": true,
+      "license": "MIT",
       "peerDependencies": {
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
@@ -4711,18 +4774,6 @@
         "node": ">=0.3.1"
       }
     },
-    "node_modules/doctrine": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
-      "integrity": "sha512-yS+Q5i3hBf7GBkd4KG8a7eBNNWNGLTaEwwYWUijIYM7zrlYDM0BFXHjjPWlWZ1Rg7UaddZeIDmi9jF3HmqiQ2w==",
-      "dev": true,
-      "dependencies": {
-        "esutils": "^2.0.2"
-      },
-      "engines": {
-        "node": ">=6.0.0"
-      }
-    },
     "node_modules/dotenv": {
       "version": "16.4.5",
       "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.5.tgz",
@@ -4825,44 +4876,43 @@
       }
     },
     "node_modules/eslint": {
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@@ -7113,15 +7129,6 @@
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diff --git a/package.json b/package.json
index 65599cb..5aa161b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digicatapult/sqnc-hyproof-api",
-  "version": "0.13.114",
+  "version": "0.13.115",
   "description": "An OpenAPI API service for SQNC",
   "main": "src/index.ts",
   "type": "module",
@@ -40,6 +40,9 @@
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   "homepage": "https://github.com/digicatapult/sqnc-hyproof-api#readme",
   "devDependencies": {
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