diff --git a/webapp/src/Service/BalloonService.php b/webapp/src/Service/BalloonService.php
index 383fbabe9e4..38bfcbca8b6 100644
--- a/webapp/src/Service/BalloonService.php
+++ b/webapp/src/Service/BalloonService.php
@@ -80,7 +80,7 @@ public function updateBalloons(
 
     /**
      * @return array<array{data: array{balloonid: int, time: string, problem: string, contestproblem: ContestProblem,
-     *                                 team: Team, teamid: int, location: string|null, affiliation: TeamAffiliation|null,
+     *                                 team: Team, teamid: int, location: string|null, affiliation: string|null,
      *                                 affiliationid: int, category: string, categoryid: int, total: array<string, ContestProblem>,
      *                                 awards: string, done: bool}}>
     */
diff --git a/webapp/src/Service/CheckConfigService.php b/webapp/src/Service/CheckConfigService.php
index ac37c65074f..db70509ac02 100644
--- a/webapp/src/Service/CheckConfigService.php
+++ b/webapp/src/Service/CheckConfigService.php
@@ -813,7 +813,7 @@ public function checkSelfRegistration(): ConfigCheckItem
     }
 
     /**
-     * @return array<string, array{caption: string, result: string, desc: string, escape: bool}>
+     * @return ConfigCheckItem[]
      */
     public function checkAllExternalIdentifiers(): array
     {
diff --git a/webapp/src/Service/DOMJudgeService.php b/webapp/src/Service/DOMJudgeService.php
index 9b45cb70be5..ff18d37463c 100644
--- a/webapp/src/Service/DOMJudgeService.php
+++ b/webapp/src/Service/DOMJudgeService.php
@@ -931,7 +931,6 @@ public function getAttachmentStreamedResponse(ContestProblem $contestProblem, in
     /**
      * @throws NoResultException
      * @throws NonUniqueResultException
-     * @return array<string, int>
      */
     public function getContestStats(Contest $contest): ContestStatus
     {