diff --git a/packages/backend/src/core/RelayService.ts b/packages/backend/src/core/RelayService.ts
index 9caeaf1714..91857dc683 100644
--- a/packages/backend/src/core/RelayService.ts
+++ b/packages/backend/src/core/RelayService.ts
@@ -35,7 +35,7 @@ export class RelayService {
 		private createSystemUserService: CreateSystemUserService,
 		private apRendererService: ApRendererService,
 	) {
-		this.relaysCache = new MemorySingleCache<MiRelay[]>(1000 * 60 * 10); // 10s
+		this.relaysCache = new MemorySingleCache<MiRelay[]>(1000 * 60 * 10); // 10m
 	}
 
 	@bindThis
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index f46aacaef4..2b6089fd3a 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -130,7 +130,7 @@ export class RoleService implements OnApplicationShutdown, OnModuleInit {
 		private fanoutTimelineService: FanoutTimelineService,
 	) {
 		this.rolesCache = new MemorySingleCache<MiRole[]>(1000 * 60 * 60); // 1h
-		this.roleAssignmentByUserIdCache = new MemoryKVCache<MiRoleAssignment[]>(1000 * 60 * 5); // 1h
+		this.roleAssignmentByUserIdCache = new MemoryKVCache<MiRoleAssignment[]>(1000 * 60 * 5); // 5m
 
 		this.redisForSub.on('message', this.onMessage);
 	}
diff --git a/packages/backend/src/queue/processors/DeliverProcessorService.ts b/packages/backend/src/queue/processors/DeliverProcessorService.ts
index 95477aa2cd..4076e9da90 100644
--- a/packages/backend/src/queue/processors/DeliverProcessorService.ts
+++ b/packages/backend/src/queue/processors/DeliverProcessorService.ts
@@ -45,7 +45,7 @@ export class DeliverProcessorService {
 		private queueLoggerService: QueueLoggerService,
 	) {
 		this.logger = this.queueLoggerService.logger.createSubLogger('deliver');
-		this.suspendedHostsCache = new MemorySingleCache<MiInstance[]>(1000 * 60 * 60); // 1m
+		this.suspendedHostsCache = new MemorySingleCache<MiInstance[]>(1000 * 60 * 60); // 1h
 	}
 
 	@bindThis
diff --git a/packages/backend/src/server/NodeinfoServerService.ts b/packages/backend/src/server/NodeinfoServerService.ts
index bf12822964..bc8d3c0411 100644
--- a/packages/backend/src/server/NodeinfoServerService.ts
+++ b/packages/backend/src/server/NodeinfoServerService.ts
@@ -135,7 +135,7 @@ export class NodeinfoServerService {
 			return document;
 		};
 
-		const cache = new MemorySingleCache<Awaited<ReturnType<typeof nodeinfo2>>>(1000 * 60 * 10); // 10s
+		const cache = new MemorySingleCache<Awaited<ReturnType<typeof nodeinfo2>>>(1000 * 60 * 10); // 10m
 
 		fastify.get(nodeinfo2_1path, async (request, reply) => {
 			const base = await cache.fetch(() => nodeinfo2(21));