diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index fe5a3d9..75f3e19 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -21,7 +21,7 @@ jobs:
           node-version: '25.8'
           cache: 'npm'
 
-      - run: npm cit
+      - run: npm ci
 
       - name: Docker meta
         id: meta
diff --git a/lib/services/email.ts b/lib/services/email.ts
index eb05d95..c7fae37 100644
--- a/lib/services/email.ts
+++ b/lib/services/email.ts
@@ -7,12 +7,30 @@ import crypto from 'crypto';
 import * as config from '../config.js';
 import log from '../utils/log.js';
 import MailgunJs from 'mailgun-js';
-import MailChimpClient from 'mailchimp-api-v3';
 
 const mailgun = MailgunJs({ apiKey: config.mailgun.apiKey, domain: config.mailgun.domain });
 
-const mailchimp = new MailChimpClient(config.mailchimp.apiKey),
-	md5 = (string: string) => crypto.createHash('md5').update(string).digest('hex');
+if (!config.mailchimp.apiKey) throw new Error('Mailchimp API key config is not set');
+const mailchimpDataCenter = config.mailchimp.apiKey.split('-')[1];
+if (!mailchimpDataCenter) throw new Error('Mailchimp API key format is invalid');
+
+const md5 = (string: string) => crypto.createHash('md5').update(string).digest('hex');
+
+async function callMailchimp(method: 'PUT' | 'POST', path: string, body: unknown) {
+	const response = await fetch(`https://${mailchimpDataCenter}.api.mailchimp.com/3.0${path}`, {
+		method,
+		headers: {
+			authorization: `apikey ${config.mailchimp.apiKey}`,
+			'content-type': 'application/json'
+		},
+		body: JSON.stringify(body)
+	});
+
+	if (!response.ok) {
+		const responseText = await response.text();
+		throw new Error(`Mailchimp API request failed (${response.status}): ${responseText}`);
+	}
+}
 
 /**
  * This will upsert a member into a list with first and last names, subscribe by default (but leave existing statuses in place)
@@ -28,7 +46,7 @@ export async function upsertEmailSubscriber(listId: string, { email, firstName,
 	const memberHash = md5(email.toLowerCase());
 
 	try {
-		await mailchimp.put(`/lists/${listId}/members/${memberHash}`, {
+		await callMailchimp('PUT', `/lists/${listId}/members/${memberHash}`, {
 			email_address: email,
 			status_if_new: 'subscribed',
 			merge_fields: {
@@ -38,7 +56,7 @@ export async function upsertEmailSubscriber(listId: string, { email, firstName,
 		});
 
 		if (tags.length) {
-			await mailchimp.post(`/lists/${listId}/members/${memberHash}/tags`, {
+			await callMailchimp('POST', `/lists/${listId}/members/${memberHash}/tags`, {
 				tags: tags.map(tag => ({ name: tag, status: 'active' }))
 			});
 		}
diff --git a/package-lock.json b/package-lock.json
index 4503b5c..b99bfc6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,6 @@
 				"jsonwebtoken": "^9.0.2",
 				"koa": "^2.16.1",
 				"koa-bodyparser": "^4.4.1",
-				"mailchimp-api-v3": "^1.15.0",
 				"mailgun-js": "^0.22.0",
 				"pino": "^9.6.0",
 				"postgres": "^3.4.5",
@@ -1034,7 +1033,6 @@
 			"integrity": "sha512-nm3cvFN9SqZGXjmw5bZ6cGmvJSyJPn0wU9gHAZZHDnZl2wF9PhHv78Xf06E0MaNk4zLVHL8hb2/c32XvyJOLQg==",
 			"dev": true,
 			"license": "MIT",
-			"peer": true,
 			"dependencies": {
 				"@typescript-eslint/scope-manager": "8.53.1",
 				"@typescript-eslint/types": "8.53.1",
@@ -1277,7 +1275,6 @@
 			"integrity": "sha512-OvQ/2pUDKmgfCg++xsTX1wGxfTaszcHVcTctW4UJB4hibJx2HXxxO5UmVgyjMa+ZDsiaf5wWLXYpRWMmBI0QHg==",
 			"dev": true,
 			"license": "MIT",
-			"peer": true,
 			"bin": {
 				"acorn": "bin/acorn"
 			},
@@ -1310,6 +1307,7 @@
 			"version": "6.12.6",
 			"resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
 			"integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+			"dev": true,
 			"dependencies": {
 				"fast-deep-equal": "^3.1.1",
 				"fast-json-stable-stringify": "^2.0.0",
@@ -1352,22 +1350,6 @@
 			"dev": true,
 			"license": "Python-2.0"
 		},
-		"node_modules/asn1": {
-			"version": "0.2.6",
-			"resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.6.tgz",
-			"integrity": "sha512-ix/FxPn0MDjeyJ7i/yoHGFt/EX6LyNbxSEhPPXODPL+KB0VPk86UYfL0lMdy+KCnv+fmvIzySwaK5COwqVbWTQ==",
-			"dependencies": {
-				"safer-buffer": "~2.1.0"
-			}
-		},
-		"node_modules/assert-plus": {
-			"version": "1.0.0",
-			"resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-			"integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
-			"engines": {
-				"node": ">=0.8"
-			}
-		},
 		"node_modules/ast-types": {
 			"version": "0.7.8",
 			"resolved": "https://registry.npmjs.org/ast-types/-/ast-types-0.7.8.tgz",
@@ -1397,19 +1379,6 @@
 				"node": ">=8.0.0"
 			}
 		},
-		"node_modules/aws-sign2": {
-			"version": "0.7.0",
-			"resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
-			"integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
-			"engines": {
-				"node": "*"
-			}
-		},
-		"node_modules/aws4": {
-			"version": "1.11.0",
-			"resolved": "https://registry.npmjs.org/aws4/-/aws4-1.11.0.tgz",
-			"integrity": "sha512-xh1Rl34h6Fi1DC2WWKfxUTVqRsNnr6LsKz2+hfwDxQJWmrx8+c7ylaqBMcHfl1U1r2dsifOvKX3LQuLNZ+XSvA=="
-		},
 		"node_modules/balanced-match": {
 			"version": "1.0.2",
 			"resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -1436,14 +1405,6 @@
 				}
 			]
 		},
-		"node_modules/bcrypt-pbkdf": {
-			"version": "1.0.2",
-			"resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
-			"integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
-			"dependencies": {
-				"tweetnacl": "^0.14.3"
-			}
-		},
 		"node_modules/bignumber.js": {
 			"version": "9.1.2",
 			"resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.1.2.tgz",
@@ -1452,11 +1413,6 @@
 				"node": "*"
 			}
 		},
-		"node_modules/bluebird": {
-			"version": "3.7.2",
-			"resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
-			"integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg=="
-		},
 		"node_modules/brace-expansion": {
 			"version": "1.1.11",
 			"resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -1530,11 +1486,6 @@
 				"node": ">=6"
 			}
 		},
-		"node_modules/caseless": {
-			"version": "0.12.0",
-			"resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
-			"integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
-		},
 		"node_modules/chalk": {
 			"version": "5.4.1",
 			"resolved": "https://registry.npmjs.org/chalk/-/chalk-5.4.1.tgz",
@@ -1548,11 +1499,6 @@
 				"url": "https://github.com/chalk/chalk?sponsor=1"
 			}
 		},
-		"node_modules/chownr": {
-			"version": "1.1.4",
-			"resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
-			"integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg=="
-		},
 		"node_modules/co": {
 			"version": "4.6.0",
 			"resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
@@ -1671,17 +1617,6 @@
 				"node": ">= 8"
 			}
 		},
-		"node_modules/dashdash": {
-			"version": "1.14.1",
-			"resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
-			"integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
-			"dependencies": {
-				"assert-plus": "^1.0.0"
-			},
-			"engines": {
-				"node": ">=0.10"
-			}
-		},
 		"node_modules/data-uri-to-buffer": {
 			"version": "1.2.0",
 			"resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-1.2.0.tgz",
@@ -1771,15 +1706,6 @@
 			"resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
 			"integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
 		},
-		"node_modules/ecc-jsbn": {
-			"version": "0.1.2",
-			"resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
-			"integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
-			"dependencies": {
-				"jsbn": "~0.1.0",
-				"safer-buffer": "^2.1.0"
-			}
-		},
 		"node_modules/ecdsa-sig-formatter": {
 			"version": "1.0.11",
 			"resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
@@ -1801,27 +1727,6 @@
 				"node": ">= 0.8"
 			}
 		},
-		"node_modules/encoding": {
-			"version": "0.1.13",
-			"resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
-			"integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
-			"optional": true,
-			"dependencies": {
-				"iconv-lite": "^0.6.2"
-			}
-		},
-		"node_modules/encoding/node_modules/iconv-lite": {
-			"version": "0.6.3",
-			"resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
-			"integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-			"optional": true,
-			"dependencies": {
-				"safer-buffer": ">= 2.1.2 < 3.0.0"
-			},
-			"engines": {
-				"node": ">=0.10.0"
-			}
-		},
 		"node_modules/end-of-stream": {
 			"version": "1.4.4",
 			"resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
@@ -1944,7 +1849,6 @@
 			"integrity": "sha512-E6Mtz9oGQWDCpV12319d59n4tx9zOTXSTmc8BLVxBx+G/0RdM5MvEEJLU9c0+aleoePYYgVTOsRblx433qmhWQ==",
 			"dev": true,
 			"license": "MIT",
-			"peer": true,
 			"dependencies": {
 				"@eslint-community/eslint-utils": "^4.2.0",
 				"@eslint-community/regexpp": "^4.12.1",
@@ -2252,14 +2156,6 @@
 			"resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
 			"integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
 		},
-		"node_modules/extsprintf": {
-			"version": "1.3.0",
-			"resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
-			"integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
-			"engines": [
-				"node >=0.6.0"
-			]
-		},
 		"node_modules/fast-copy": {
 			"version": "3.0.2",
 			"resolved": "https://registry.npmjs.org/fast-copy/-/fast-copy-3.0.2.tgz",
@@ -2270,7 +2166,8 @@
 		"node_modules/fast-deep-equal": {
 			"version": "3.1.3",
 			"resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
-			"integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+			"integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+			"dev": true
 		},
 		"node_modules/fast-diff": {
 			"version": "1.3.0",
@@ -2282,7 +2179,8 @@
 		"node_modules/fast-json-stable-stringify": {
 			"version": "2.1.0",
 			"resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
-			"integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw=="
+			"integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw==",
+			"dev": true
 		},
 		"node_modules/fast-levenshtein": {
 			"version": "2.0.6",
@@ -2361,14 +2259,6 @@
 			"dev": true,
 			"license": "ISC"
 		},
-		"node_modules/forever-agent": {
-			"version": "0.6.1",
-			"resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
-			"integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=",
-			"engines": {
-				"node": "*"
-			}
-		},
 		"node_modules/form-data": {
 			"version": "2.5.1",
 			"resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.1.tgz",
@@ -2390,14 +2280,6 @@
 				"node": ">= 0.6"
 			}
 		},
-		"node_modules/fs-minipass": {
-			"version": "1.2.7",
-			"resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.7.tgz",
-			"integrity": "sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==",
-			"dependencies": {
-				"minipass": "^2.6.0"
-			}
-		},
 		"node_modules/fsevents": {
 			"version": "2.3.3",
 			"resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
@@ -2565,14 +2447,6 @@
 			"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
 			"integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
 		},
-		"node_modules/getpass": {
-			"version": "0.1.7",
-			"resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
-			"integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
-			"dependencies": {
-				"assert-plus": "^1.0.0"
-			}
-		},
 		"node_modules/glob-parent": {
 			"version": "6.0.2",
 			"resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-6.0.2.tgz",
@@ -2665,27 +2539,6 @@
 				"safe-buffer": "^5.0.1"
 			}
 		},
-		"node_modules/har-schema": {
-			"version": "2.0.0",
-			"resolved": "https://registry.npmjs.org/har-schema/-/har-schema-2.0.0.tgz",
-			"integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=",
-			"engines": {
-				"node": ">=4"
-			}
-		},
-		"node_modules/har-validator": {
-			"version": "5.1.5",
-			"resolved": "https://registry.npmjs.org/har-validator/-/har-validator-5.1.5.tgz",
-			"integrity": "sha512-nmT2T0lljbxdQZfspsno9hgrG3Uir6Ks5afism62poxqBM6sDnMEuPmzTq8XN0OEwqKLLdh1jQI3qyE66Nzb3w==",
-			"deprecated": "this library is no longer supported",
-			"dependencies": {
-				"ajv": "^6.12.3",
-				"har-schema": "^2.0.0"
-			},
-			"engines": {
-				"node": ">=6"
-			}
-		},
 		"node_modules/has": {
 			"version": "1.0.3",
 			"resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
@@ -2797,20 +2650,6 @@
 			"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
 			"integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
 		},
-		"node_modules/http-signature": {
-			"version": "1.2.0",
-			"resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
-			"integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
-			"dependencies": {
-				"assert-plus": "^1.0.0",
-				"jsprim": "^1.2.2",
-				"sshpk": "^1.7.0"
-			},
-			"engines": {
-				"node": ">=0.8",
-				"npm": ">=1.3.7"
-			}
-		},
 		"node_modules/https-proxy-agent": {
 			"version": "3.0.1",
 			"resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-3.0.1.tgz",
@@ -2947,11 +2786,6 @@
 				"node": ">=0.10.0"
 			}
 		},
-		"node_modules/is-typedarray": {
-			"version": "1.0.0",
-			"resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
-			"integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo="
-		},
 		"node_modules/isarray": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
@@ -2964,11 +2798,6 @@
 			"dev": true,
 			"license": "ISC"
 		},
-		"node_modules/isstream": {
-			"version": "0.1.2",
-			"resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
-			"integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
-		},
 		"node_modules/joycon": {
 			"version": "3.1.1",
 			"resolved": "https://registry.npmjs.org/joycon/-/joycon-3.1.1.tgz",
@@ -2991,11 +2820,6 @@
 				"js-yaml": "bin/js-yaml.js"
 			}
 		},
-		"node_modules/jsbn": {
-			"version": "0.1.1",
-			"resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
-			"integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM="
-		},
 		"node_modules/json-bigint": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/json-bigint/-/json-bigint-1.0.0.tgz",
@@ -3011,15 +2835,11 @@
 			"dev": true,
 			"license": "MIT"
 		},
-		"node_modules/json-schema": {
-			"version": "0.4.0",
-			"resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
-			"integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA=="
-		},
 		"node_modules/json-schema-traverse": {
 			"version": "0.4.1",
 			"resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
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 			"funding": {
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@@ -3407,14 +3170,6 @@
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@@ -3759,11 +3507,6 @@
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 		},
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@@ -3778,6 +3521,7 @@
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+			"dev": true,
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@@ -3843,67 +3587,6 @@
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-			"integrity": "sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==",
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-				"uuid": "^3.3.2"
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-			}
-		},
-		"node_modules/request/node_modules/form-data": {
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-		"node_modules/request/node_modules/qs": {
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-			"resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-			"integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
-			"engines": {
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-			}
-		},
-		"node_modules/request/node_modules/uuid": {
-			"version": "3.4.0",
-			"resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-			"integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
-			"deprecated": "Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.",
-			"bin": {
-				"uuid": "bin/uuid"
-			}
-		},
 		"node_modules/resolve-from": {
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 			"resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
@@ -4095,30 +3778,6 @@
 				"node": ">= 10.x"
 			}
 		},
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-			"resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
-			"integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
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-				"tweetnacl": "~0.14.0"
-			},
-			"bin": {
-				"sshpk-conv": "bin/sshpk-conv",
-				"sshpk-sign": "bin/sshpk-sign",
-				"sshpk-verify": "bin/sshpk-verify"
-			},
-			"engines": {
-				"node": ">=0.10.0"
-			}
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 		"node_modules/statuses": {
 			"version": "1.5.0",
 			"resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
@@ -4180,23 +3839,6 @@
 				"url": "https://opencollective.com/synckit"
 			}
 		},
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-			"resolved": "https://registry.npmjs.org/tar/-/tar-4.4.19.tgz",
-			"integrity": "sha512-a20gEsvHnWe0ygBY8JbxoM4w3SJdhc7ZAuxkLqh+nvNQN2IOt0B5lLgM490X5Hl8FF0dl0tOf2ewFYAlIFgzVA==",
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-			},
-			"engines": {
-				"node": ">=4.5"
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 		"node_modules/thread-stream": {
 			"version": "3.1.0",
 			"resolved": "https://registry.npmjs.org/thread-stream/-/thread-stream-3.1.0.tgz",
@@ -4236,18 +3878,6 @@
 				"node": ">=0.6"
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 		},
-		"node_modules/tough-cookie": {
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-			"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.5.0.tgz",
-			"integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==",
-			"dependencies": {
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-				"punycode": "^2.1.1"
-			},
-			"engines": {
-				"node": ">=0.8"
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 		"node_modules/tr46": {
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 			"resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
@@ -4294,22 +3924,6 @@
 				"fsevents": "~2.3.3"
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 		},
-		"node_modules/tunnel-agent": {
-			"version": "0.6.0",
-			"resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-			"integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
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-			}
-		},
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-			"resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
-			"integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
-		},
 		"node_modules/type-check": {
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 			"resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -4340,7 +3954,6 @@
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 			"dev": true,
 			"license": "Apache-2.0",
-			"peer": true,
 			"bin": {
 				"tsc": "bin/tsc",
 				"tsserver": "bin/tsserver"
@@ -4392,6 +4005,7 @@
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+			"dev": true,
 			"dependencies": {
 				"punycode": "^2.1.0"
 			}
@@ -4422,24 +4036,6 @@
 				"node": ">= 0.8"
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-			"resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-			"integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
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-			"integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
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 		"node_modules/webidl-conversions": {
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diff --git a/package.json b/package.json
index 34f388e..fd7c7e4 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,6 @@
 		"jsonwebtoken": "^9.0.2",
 		"koa": "^2.16.1",
 		"koa-bodyparser": "^4.4.1",
-		"mailchimp-api-v3": "^1.15.0",
 		"mailgun-js": "^0.22.0",
 		"pino": "^9.6.0",
 		"postgres": "^3.4.5",