diff --git a/config/default.json b/config/default.json
index 6d4d1f3fb..8a8f67d7f 100644
--- a/config/default.json
+++ b/config/default.json
@@ -10,7 +10,7 @@
   },
   "contentProxyUrl": "http://contentproxy.signal.org:443",
   "updatesUrl": "https://updates2.signal.org/desktop",
-  "updatesPublicKey": "fd7dd3de7149dc0a127909fee7de0f7620ddd0de061b37a2c303e37de802a401",
+  "updatesPublicKey": "05fd7dd3de7149dc0a127909fee7de0f7620ddd0de061b37a2c303e37de802a401",
   "sfuUrl": "https://sfu.voip.signal.org/",
   "updatesEnabled": false,
   "openDevTools": false,
diff --git a/ts/test-node/updater/curve_test.ts b/ts/test-node/updater/curve_test.ts
index c9c527cc8..cd8e36545 100644
--- a/ts/test-node/updater/curve_test.ts
+++ b/ts/test-node/updater/curve_test.ts
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
 import { assert } from 'chai';
+import { get as getFromConfig } from 'config';
 
 import { keyPair, sign, verify } from '../../updater/curve';
 
@@ -14,4 +15,22 @@ describe('updater/curve', () => {
 
     assert.strictEqual(verified, true);
   });
+
+  it('verifies with our own key', () => {
+    const message = Buffer.from(
+      '7761a7761eccc0af7ab67546ec044e40dd1e9762f03d0c504d53fb40ceba5738-1.40.0-beta.3'
+    );
+    const signature = Buffer.from(
+      '982eee37076a391392879ce7a69e6ce24708cf12abd87624ae116c665e75b5404bf29fe2cd76c6213753bd16d7529f0f9116d63a63e90d2c6c8b57e17cc17100',
+      'hex'
+    );
+    const publicKey = Buffer.from(
+      getFromConfig<string>('updatesPublicKey'),
+      'hex'
+    );
+
+    const verified = verify(publicKey, message, signature);
+
+    assert.strictEqual(verified, true);
+  });
 });