diff --git a/index.php b/index.php
index c34fc5c6..4ef249bf 100644
--- a/index.php
+++ b/index.php
@@ -766,7 +766,7 @@ private function getDownloadedFilePath(): string {
 	 *
 	 * @throws \Exception
 	 */
-	public function verifyIntegrity(): void {
+	public function verifyIntegrity(string $urlOverride = ''): void {
 		$this->silentLog('[info] verifyIntegrity()');
 
 		if ($this->getCurrentReleaseChannel() === 'daily') {
@@ -774,6 +774,11 @@ public function verifyIntegrity(): void {
 			return;
 		}
 
+		if ($urlOverride !== '') {
+			$this->silentLog('[info] custom download url provided, cannot verify signature');
+			return;
+		}
+
 		$response = $this->getUpdateServerResponse();
 		if (empty($response['signature'])) {
 			throw new \Exception('No signature specified for defined update');
diff --git a/lib/UpdateCommand.php b/lib/UpdateCommand.php
index c7a26e26..0596418c 100644
--- a/lib/UpdateCommand.php
+++ b/lib/UpdateCommand.php
@@ -420,7 +420,7 @@ protected function executeStep(int $step): array {
 						$this->updater->silentLog('[info] Skipping integrity check as requested');
 						break;
 					}
-					$this->updater->verifyIntegrity();
+					$this->updater->verifyIntegrity($this->urlOverride);
 					break;
 				case 6:
 					$this->updater->extractDownload();
diff --git a/lib/Updater.php b/lib/Updater.php
index 83b60513..e2b96721 100644
--- a/lib/Updater.php
+++ b/lib/Updater.php
@@ -749,7 +749,7 @@ private function getDownloadedFilePath(): string {
 	 *
 	 * @throws \Exception
 	 */
-	public function verifyIntegrity(): void {
+	public function verifyIntegrity(string $urlOverride = ''): void {
 		$this->silentLog('[info] verifyIntegrity()');
 
 		if ($this->getCurrentReleaseChannel() === 'daily') {
@@ -757,6 +757,11 @@ public function verifyIntegrity(): void {
 			return;
 		}
 
+		if ($urlOverride !== '') {
+			$this->silentLog('[info] custom download url provided, cannot verify signature');
+			return;
+		}
+
 		$response = $this->getUpdateServerResponse();
 		if (empty($response['signature'])) {
 			throw new \Exception('No signature specified for defined update');
diff --git a/updater.phar b/updater.phar
index f6a1f75c..af7d0dad 100755
Binary files a/updater.phar and b/updater.phar differ