diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 15aa9363..cf36b13d 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -20,7 +20,7 @@ android {
 
     defaultConfig {
         applicationId = "com.joeloewi.croissant"
-        versionCode = 48
+        versionCode = 49
         versionName = "1.2.2"
         targetSdk = 34
 
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt b/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
index 50092a1c..9e4fabef 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/di/UtilModule.kt
@@ -79,7 +79,7 @@ object UtilModule {
                 this
             }
         }
-        .okHttpClient { okHttpClient }
+        .okHttpClient(okHttpClient)
         .placeholder(R.drawable.image_placeholder)
         .build()
 }
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/AttendanceDetailViewModel.kt b/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/AttendanceDetailViewModel.kt
index 4d1c2561..e6cf7d91 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/AttendanceDetailViewModel.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/viewmodel/AttendanceDetailViewModel.kt
@@ -252,7 +252,21 @@ class AttendanceDetailViewModel @Inject constructor(
         viewModelScope.launch(Dispatchers.IO) {
             _deleteAttendanceState.value = ILCE.Loading
             _deleteAttendanceState.value = runCatching {
-                deleteAttendanceUseCase(getOneAttendanceUseCase(attendanceId).attendance)
+                val attendance = getOneAttendanceUseCase(attendanceId).attendance
+
+                listOf(
+                    attendance.checkSessionWorkerName,
+                    attendance.attendCheckInEventWorkerName,
+                    attendance.oneTimeAttendCheckInEventWorkerName
+                ).map { it.toString() }.map { uniqueWorkName ->
+                    workManager.cancelUniqueWork(uniqueWorkName)
+                }
+
+                workManager.cancelWorkById(attendance.checkSessionWorkerId)
+
+                alarmScheduler.cancelCheckInAlarm(attendance.id)
+
+                deleteAttendanceUseCase(attendance)
                 Unit
             }.foldAsILCE()
         }
diff --git a/app/src/main/kotlin/com/joeloewi/croissant/worker/CheckSessionWorker.kt b/app/src/main/kotlin/com/joeloewi/croissant/worker/CheckSessionWorker.kt
index 46308c9b..9ed9b521 100644
--- a/app/src/main/kotlin/com/joeloewi/croissant/worker/CheckSessionWorker.kt
+++ b/app/src/main/kotlin/com/joeloewi/croissant/worker/CheckSessionWorker.kt
@@ -3,6 +3,7 @@ package com.joeloewi.croissant.worker
 import android.content.Context
 import androidx.hilt.work.HiltWorker
 import androidx.work.CoroutineWorker
+import androidx.work.WorkManager
 import androidx.work.WorkerParameters
 import com.google.firebase.Firebase
 import com.google.firebase.crashlytics.crashlytics
@@ -46,7 +47,14 @@ class CheckSessionWorker @AssistedInject constructor(
         _attendanceId.runCatching {
             takeIf { it != Long.MIN_VALUE }!!
         }.mapCatching { attendanceId ->
-            getOneAttendanceUseCase(attendanceId)
+            val attendance = runCatching { getOneAttendanceUseCase(attendanceId) }.getOrNull()
+
+            if (attendance == null) {
+                WorkManager.getInstance(context).cancelWorkById(id)
+                return@withContext Result.failure()
+            } else {
+                attendance
+            }
         }.mapCatching { attendanceWithAllValues ->
             getUserFullInfoHoYoLABUseCase(attendanceWithAllValues.attendance.cookie).getOrThrow()
         }.fold(