diff --git a/package.json b/package.json
index 2d5471b96..69560420a 100644
--- a/package.json
+++ b/package.json
@@ -106,7 +106,6 @@
   },
   "devDependencies": {
     "@types/chai": "^4.3.0",
-    "@types/chai-as-promised": "^7.1.5",
     "@types/cheerio": "^0.22.31",
     "@types/cookie-parser": "^1.4.2",
     "@types/csurf": "^1.11.2",
@@ -128,7 +127,6 @@
     "@typescript-eslint/eslint-plugin": "^8.13.0",
     "@typescript-eslint/parser": "^8.13.0",
     "chai": "^4.3.6",
-    "chai-as-promised": "^7.1.1",
     "chai-http": "^5.1.1",
     "cheerio": "^1.0.0-rc.10",
     "concurrently": "^9.0.1",
diff --git a/test/utils/test-utils.ts b/test/utils/test-utils.ts
index adf3fb1d9..5443ced54 100644
--- a/test/utils/test-utils.ts
+++ b/test/utils/test-utils.ts
@@ -1,7 +1,6 @@
 import chai from "chai";
 import sinon from "sinon";
 import sinonChai from "sinon-chai";
-import chaiAsPromised from "chai-as-promised";
 import { jestSnapshotPlugin } from "mocha-chai-jest-snapshot";
 import supertest, { Test } from "supertest";
 import { expectAnalyticsPropertiesMatchSnapshot } from "../helpers/expect-response-helpers";
@@ -9,7 +8,6 @@ import TestAgent = require("supertest/lib/agent");
 
 chai.should();
 chai.use(sinonChai);
-chai.use(chaiAsPromised);
 chai.use(jestSnapshotPlugin());
 
 const expect = chai.expect;
diff --git a/yarn.lock b/yarn.lock
index 27959ca95..342128f11 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1740,13 +1740,6 @@
     "@types/connect" "*"
     "@types/node" "*"
 
-"@types/chai-as-promised@^7.1.5":
-  version "7.1.8"
-  resolved "https://registry.yarnpkg.com/@types/chai-as-promised/-/chai-as-promised-7.1.8.tgz#f2b3d82d53c59626b5d6bbc087667ccb4b677fe9"
-  integrity sha512-ThlRVIJhr69FLlh6IctTXFkmhtP3NpMZ2QGq69StYLyKZFp/HOp1VdKZj7RvfNWYYcJ1xlbLGLLWj1UvP5u/Gw==
-  dependencies:
-    "@types/chai" "*"
-
 "@types/chai@*", "@types/chai@^4.3.0":
   version "4.3.0"
   resolved "https://registry.npmjs.org/@types/chai/-/chai-4.3.0.tgz"
@@ -2741,13 +2734,6 @@ caniuse-lite@^1.0.30001646:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001660.tgz#31218de3463fabb44d0b7607b652e56edf2e2355"
   integrity sha512-GacvNTTuATm26qC74pt+ad1fW15mlQ/zuTzzY1ZoIzECTP8HURDfF43kNxPgf7H1jmelCBQTTbBNxdSXOA7Bqg==
 
-chai-as-promised@^7.1.1:
-  version "7.1.1"
-  resolved "https://registry.npmjs.org/chai-as-promised/-/chai-as-promised-7.1.1.tgz"
-  integrity sha512-azL6xMoi+uxu6z4rhWQ1jbdUhOMhis2PvscD/xjLqNMkv3BPPp2JyyuTHOrf9BOosGpNQ11v6BKv/g57RXbiaA==
-  dependencies:
-    check-error "^1.0.2"
-
 chai-http@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/chai-http/-/chai-http-5.1.1.tgz#de3435e19b9e5ef235c186673da10b823e6c76f1"
@@ -2795,7 +2781,7 @@ charset@^1.0.1:
   resolved "https://registry.yarnpkg.com/charset/-/charset-1.0.1.tgz#8d59546c355be61049a8fa9164747793319852bd"
   integrity sha512-6dVyOOYjpfFcL1Y4qChrAoQLRHvj2ziyhcm0QJlhOcAhykL/k1kTUPbeo+87MNRTRdk2OIIsIXbuF3x2wi5EXg==
 
-check-error@^1.0.2, check-error@^1.0.3:
+check-error@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.3.tgz#a6502e4312a7ee969f646e83bb3ddd56281bd694"
   integrity sha512-iKEoDYaRmd1mxM90a2OEfWhjsjPpYPuQ+lMYsoxB126+t8fw7ySEO48nmDg5COTjxDI65/Y2OWpeEHk3ZOe8zg==