diff --git a/src/setup-gazebo-linux.ts b/src/setup-gazebo-linux.ts
index 7b27206..b661e93 100644
--- a/src/setup-gazebo-linux.ts
+++ b/src/setup-gazebo-linux.ts
@@ -100,6 +100,7 @@ async function addAptRepoKey(): Promise<void> {
 	const keyFilePath = path.join(workspace, "gazebo.key");
 	fs.writeFileSync(keyFilePath, openRoboticsAptPublicGpgKey);
 	await utils.exec("sudo", ["apt-key", "add", keyFilePath]);
+	await utils.exec("sudo", ["apt-get", "update"]);
 }
 
 /**