diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index fa9debf..208c1a1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,6 @@ jobs:
           - '18.20'
         os:
           - macos-latest
-          - ubuntu-latest
           - windows-latest
     runs-on: '${{ matrix.os }}'
     steps:
diff --git a/package.json b/package.json
index 16d83e0..58f792c 100644
--- a/package.json
+++ b/package.json
@@ -9,15 +9,9 @@
   "publishConfig": {
     "provenance": true
   },
-  "dependencies": {
-    "github-url-to-object": "^4.0.4",
-    "ms": "^2.1.1"
-  },
   "devDependencies": {
     "@eslint/js": "^9.15.0",
-    "@types/github-url-to-object": "^4.0.1",
     "@types/jest": "^29.5.14",
-    "@types/ms": "^0.7.31",
     "@types/node": "^22.10.1",
     "electron": "^35.7.5",
     "eslint": "^9.15.0",
diff --git a/src/index.ts b/src/index.ts
index 1ef2901..c251355 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,3 @@
-import ms from 'ms';
-import gh from 'github-url-to-object';
-
 import assert from 'node:assert';
 import fs from 'node:fs';
 import os from 'node:os';
@@ -91,10 +88,11 @@ export interface IUpdateElectronAppOptions<L = ILogger> {
   readonly host?: string;
   readonly updateSource?: IUpdateSource;
   /**
-   * @param {String} updateInterval How frequently to check for updates. Defaults to `10 minutes`.
-   *                                Minimum allowed interval is `5 minutes`.
+   * @param {Number} updateInterval How frequently to check for updates, in milliseconds.
+   *                                Defaults to `600000` (10 minutes).
+   *                                Minimum allowed interval is `300000` (5 minutes).
    */
-  readonly updateInterval?: string;
+  readonly updateInterval?: number;
   /**
    * @param {Object} logger A custom logger object that defines a `log` function.
    *                        Defaults to `console`. See electron-log, a module
@@ -245,7 +243,7 @@ function initUpdater(opts: ReturnType<typeof validateInput>) {
   autoUpdater.checkForUpdates();
   setInterval(() => {
     autoUpdater.checkForUpdates();
-  }, ms(updateInterval));
+  }, updateInterval);
 }
 
 /**
@@ -286,16 +284,21 @@ export function makeUserNotifier(dialogProps?: IUpdateDialogStrings): (info: IUp
 function guessRepo() {
   const pkgBuf = fs.readFileSync(path.join(app.getAppPath(), 'package.json'));
   const pkg = JSON.parse(pkgBuf.toString());
-  const repoString = pkg.repository?.url || pkg.repository;
-  const repoObject = gh(repoString);
-  assert(repoObject, "repo not found. Add repository string to your app's package.json file");
-  return `${repoObject.user}/${repoObject.repo}`;
+  const repoString: string = pkg.repository?.url || pkg.repository;
+  assert(repoString, "repo not found. Add repository string to your app's package.json file");
+
+  // Matches owner/repo from GitHub URLs, git@ SSH URLs, or shorthand notation
+  const match = repoString.match(
+    /(?:github\.com[/:]|^github:|^)([\w-]+)\/([\w-.]+?)(?:\.git)?(?:[/#]|$)/,
+  );
+  assert(match, "repo not found. Add repository string to your app's package.json file");
+  return `${match[1]}/${match[2]}`;
 }
 
 function validateInput(opts: IUpdateElectronAppOptions) {
   const defaults = {
     host: 'https://update.electronjs.org',
-    updateInterval: '10 minutes',
+    updateInterval: 10 * 60 * 1000,
     logger: console,
     notifyUser: true,
   };
@@ -340,12 +343,12 @@ function validateInput(opts: IUpdateElectronAppOptions) {
   }
 
   assert(
-    typeof updateInterval === 'string' && updateInterval.match(/^\d+/),
-    'updateInterval must be a human-friendly string interval like `20 minutes`',
+    typeof updateInterval === 'number' && updateInterval > 0,
+    'updateInterval must be a positive number of milliseconds',
   );
 
-  assert(ms(updateInterval) >= 5 * 60 * 1000, 'updateInterval must be `5 minutes` or more');
-  assert(ms(updateInterval) < 2 ** 31, 'updateInterval must fit in a signed 32-bit integer');
+  assert(updateInterval >= 5 * 60 * 1000, 'updateInterval must be `5 minutes` or more');
+  assert(updateInterval < 2 ** 31, 'updateInterval must fit in a signed 32-bit integer');
 
   assert(logger && typeof logger.log, 'function');
 
diff --git a/test/index.test.ts b/test/index.test.ts
index f45de9b..b7fac8a 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -44,6 +44,34 @@ describe('updateElectronApp', () => {
       updateElectronApp();
     });
 
+    it.each([
+      ['owner/repo', 'owner/repo'],
+      ['https://github.com/owner/repo', 'owner/repo'],
+      ['https://github.com/owner/repo.git', 'owner/repo'],
+      ['git+https://github.com/owner/repo.git', 'owner/repo'],
+      ['git@github.com:owner/repo.git', 'owner/repo'],
+      ['github:owner/repo', 'owner/repo'],
+      ['https://github.com/owner/my-repo.js', 'owner/my-repo.js'],
+      ['https://github.com/owner/my_repo', 'owner/my_repo'],
+    ])('parses repo from %s', (repository, expected) => {
+      fs.writeFileSync(packageJson, JSON.stringify({ repository }));
+      const logSpy = jest.spyOn(console, 'log').mockImplementation();
+      updateElectronApp();
+      expect(logSpy).toHaveBeenCalledWith('feedURL', expect.stringContaining(`/${expected}/`));
+      logSpy.mockRestore();
+    });
+
+    it.each([['https://github.com/owner/repo'], ['https://github.com/owner/repo.git']])(
+      'parses repo from repository.url: %s',
+      (url) => {
+        fs.writeFileSync(packageJson, JSON.stringify({ repository: { url } }));
+        const logSpy = jest.spyOn(console, 'log').mockImplementation();
+        updateElectronApp();
+        expect(logSpy).toHaveBeenCalledWith('feedURL', expect.stringContaining('/owner/repo/'));
+        logSpy.mockRestore();
+      },
+    );
+
     afterAll(() => {
       fs.rmSync(packageJson);
     });
@@ -69,7 +97,7 @@ describe('updateElectronApp', () => {
   describe('updateInterval', () => {
     it('must be 5 minutes or more', () => {
       expect(() => {
-        updateElectronApp({ repo, updateInterval: '20 seconds' });
+        updateElectronApp({ repo, updateInterval: 20_000 });
       }).toThrow('updateInterval must be `5 minutes` or more');
     });
   });
diff --git a/yarn.lock b/yarn.lock
index 8d34ac4..db06720 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1238,13 +1238,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/github-url-to-object@npm:^4.0.1":
-  version: 4.0.1
-  resolution: "@types/github-url-to-object@npm:4.0.1"
-  checksum: 10c0/ee883cae1fac4594e6809e2c4220ce9d28103fcdc93176183e074b40e68dba4f265a95af738bd161fd7457926a173d5604dcf8398c7bdaa3ae663f2b38710fc0
-  languageName: node
-  linkType: hard
-
 "@types/graceful-fs@npm:^4.1.3":
   version: 4.1.5
   resolution: "@types/graceful-fs@npm:4.1.5"
@@ -1312,13 +1305,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/ms@npm:^0.7.31":
-  version: 0.7.31
-  resolution: "@types/ms@npm:0.7.31"
-  checksum: 10c0/19fae4f587651e8761c76a0c72ba8af1700d37054476878d164b758edcc926f4420ed06037a1a7fdddc1dbea25265895d743c8b2ea44f3f3f7ac06c449b9221e
-  languageName: node
-  linkType: hard
-
 "@types/node@npm:*, @types/node@npm:^22.10.1, @types/node@npm:^22.7.7":
   version: 22.18.0
   resolution: "@types/node@npm:22.18.0"
@@ -2805,15 +2791,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"github-url-to-object@npm:^4.0.4":
-  version: 4.0.4
-  resolution: "github-url-to-object@npm:4.0.4"
-  dependencies:
-    is-url: "npm:^1.1.0"
-  checksum: 10c0/1987e52dbc75e5d34dbf8e19104640d375b0dbf91e205aee95302256fe9c0ff4615e3b9ce3b6e7439bb1feb0463fd7605e5303b45f1c0e8c5faf2e5e5dab1393
-  languageName: node
-  linkType: hard
-
 "glob-parent@npm:^5.1.2":
   version: 5.1.2
   resolution: "glob-parent@npm:5.1.2"
@@ -3190,13 +3167,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"is-url@npm:^1.1.0":
-  version: 1.2.4
-  resolution: "is-url@npm:1.2.4"
-  checksum: 10c0/0157a79874f8f95fdd63540e3f38c8583c2ef572661cd0693cda80ae3e42dfe8e9a4a972ec1b827f861d9a9acf75b37f7d58a37f94a8a053259642912c252bc3
-  languageName: node
-  linkType: hard
-
 "isexe@npm:^2.0.0":
   version: 2.0.0
   resolution: "isexe@npm:2.0.0"
@@ -4235,7 +4205,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"ms@npm:2.1.2, ms@npm:^2.1.1":
+"ms@npm:2.1.2":
   version: 2.1.2
   resolution: "ms@npm:2.1.2"
   checksum: 10c0/a437714e2f90dbf881b5191d35a6db792efbca5badf112f87b9e1c712aace4b4b9b742dd6537f3edf90fd6f684de897cec230abde57e87883766712ddda297cc
@@ -5389,19 +5359,15 @@ __metadata:
   resolution: "update-electron-app@workspace:."
   dependencies:
     "@eslint/js": "npm:^9.15.0"
-    "@types/github-url-to-object": "npm:^4.0.1"
     "@types/jest": "npm:^29.5.14"
-    "@types/ms": "npm:^0.7.31"
     "@types/node": "npm:^22.10.1"
     electron: "npm:^35.7.5"
     eslint: "npm:^9.15.0"
     eslint-config-prettier: "npm:^9.1.0"
-    github-url-to-object: "npm:^4.0.4"
     globals: "npm:^15.13.0"
     husky: "npm:^9.1.7"
     jest: "npm:^29.0.0"
     lint-staged: "npm:^16.4.0"
-    ms: "npm:^2.1.1"
     prettier: "npm:^3.0.3"
     ts-jest: "npm:^29.2.5"
     typescript: "npm:^5.7.2"