diff --git a/packages/backend/src/core/QueryService.ts b/packages/backend/src/core/QueryService.ts
index f006ed4944..7a2c325715 100644
--- a/packages/backend/src/core/QueryService.ts
+++ b/packages/backend/src/core/QueryService.ts
@@ -212,8 +212,8 @@ export class QueryService {
 				// または 自分自身
 					.orWhere('note.userId = :meId')
 				// または 自分宛て
-					.orWhere(':meId = ANY(note.visibleUserIds)')
-					.orWhere(':meId = ANY(note.mentions)')
+					.orWhere(':meId IN (note.visibleUserIds)')
+					.orWhere(':meId IN (note.mentions)')
 					.orWhere(new Brackets(qb => {
 						qb
 						// または フォロワー宛ての投稿であり、
diff --git a/packages/backend/src/core/chart/charts/federation.ts b/packages/backend/src/core/chart/charts/federation.ts
index fc474b002b..c3ab73d69d 100644
--- a/packages/backend/src/core/chart/charts/federation.ts
+++ b/packages/backend/src/core/chart/charts/federation.ts
@@ -65,21 +65,21 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followeeHost)')
 				.where('following.followeeHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ANY(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT IN (:...blocked)', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followeeHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.getRawOne()
 				.then(x => parseInt(x.count, 10)),
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followerHost)')
 				.where('following.followerHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followerHost NOT ILIKE ANY(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followerHost NOT IN (:...blocked)', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followerHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.getRawOne()
 				.then(x => parseInt(x.count, 10)),
 			this.followingsRepository.createQueryBuilder('following')
 				.select('COUNT(DISTINCT following.followeeHost)')
 				.where('following.followeeHost IS NOT NULL')
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT ILIKE ANY(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'following.followeeHost NOT IN (:...blocked)', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere(`following.followeeHost NOT IN (${ suspendedInstancesQuery.getQuery() })`)
 				.andWhere(`following.followeeHost IN (${ pubsubSubQuery.getQuery() })`)
 				.setParameters(pubsubSubQuery.getParameters())
@@ -88,7 +88,7 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.instancesRepository.createQueryBuilder('instance')
 				.select('COUNT(instance.id)')
 				.where(`instance.host IN (${ subInstancesQuery.getQuery() })`)
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ANY(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT IN (:...blocked)', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere('instance.isSuspended = false')
 				.andWhere('instance.isNotResponding = false')
 				.getRawOne()
@@ -96,7 +96,7 @@ export default class FederationChart extends Chart<typeof schema> { // eslint-di
 			this.instancesRepository.createQueryBuilder('instance')
 				.select('COUNT(instance.id)')
 				.where(`instance.host IN (${ pubInstancesQuery.getQuery() })`)
-				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host NOT ILIKE ANY(ARRAY[:...blocked])', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
+				.andWhere(meta.blockedHosts.length === 0 ? '1=1' : 'instance.host  NOT IN (:...blocked)', { blocked: meta.blockedHosts.flatMap(x => [x, `%.${x}`]) })
 				.andWhere('instance.isSuspended = false')
 				.andWhere('instance.isNotResponding = false')
 				.getRawOne()
diff --git a/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts b/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
index 14a13b09c9..e364df433d 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
@@ -74,8 +74,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId);
-			query.andWhere(':file = ANY(note.fileIds)', { file: file.id });
-
+			query.andWhere(':file <@ note.fileIds', { file: [file.id] });
 			const notes = await query.limit(ps.limit).getMany();
 
 			return await this.noteEntityService.packMany(notes, me, {
diff --git a/packages/backend/src/server/api/endpoints/hashtags/users.ts b/packages/backend/src/server/api/endpoints/hashtags/users.ts
index 50aea79943..590a23a303 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/users.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/users.ts
@@ -48,7 +48,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const query = this.usersRepository.createQueryBuilder('user')
-				.where(':tag = ANY(user.tags)', { tag: normalizeForSearch(ps.tag) })
+				.where(':tag IN (user.tags)', { tag: normalizeForSearch(ps.tag) })
 				.andWhere('user.isSuspended = FALSE');
 
 			const recent = new Date(Date.now() - (1000 * 60 * 60 * 24 * 5));