diff --git a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/ContributorsRepository.kt b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/ContributorsRepository.kt
index 66c78ee10..a1509c9b5 100644
--- a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/ContributorsRepository.kt
+++ b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/ContributorsRepository.kt
@@ -8,7 +8,7 @@ import kotlin.coroutines.cancellation.CancellationException
 
 interface ContributorsRepository {
 
-    @Throws(CancellationException::class)
+    @Throws(AppError::class, CancellationException::class)
     suspend fun refresh()
 
     @Composable
diff --git a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/EventMapRepository.kt b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/EventMapRepository.kt
index 5ca1b38b9..3ce0276ef 100644
--- a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/EventMapRepository.kt
+++ b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/EventMapRepository.kt
@@ -8,7 +8,7 @@ import kotlin.coroutines.cancellation.CancellationException
 
 interface EventMapRepository {
 
-    @Throws(CancellationException::class)
+    @Throws(AppError::class, CancellationException::class)
     suspend fun refresh()
 
     @Composable
diff --git a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/SponsorsRepository.kt b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/SponsorsRepository.kt
index bea88cb6e..4e2780059 100644
--- a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/SponsorsRepository.kt
+++ b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/SponsorsRepository.kt
@@ -9,7 +9,7 @@ import kotlin.coroutines.cancellation.CancellationException
 public interface SponsorsRepository {
     public fun getSponsorStream(): Flow<PersistentList<Sponsor>>
 
-    @Throws(CancellationException::class)
+    @Throws(AppError::class, CancellationException::class)
     public suspend fun refresh()
 
     @Composable
diff --git a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/StaffRepository.kt b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/StaffRepository.kt
index b088b477c..542db9cf6 100644
--- a/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/StaffRepository.kt
+++ b/core/model/src/commonMain/kotlin/io/github/droidkaigi/confsched/model/StaffRepository.kt
@@ -10,7 +10,7 @@ interface StaffRepository {
 
     public fun staffs(): Flow<PersistentList<Staff>>
 
-    @Throws(CancellationException::class)
+    @Throws(AppError::class, CancellationException::class)
     public suspend fun refresh()
 
     @Composable