diff --git a/app/build.gradle b/app/build.gradle
index ac03aca53..be2499e47 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -178,7 +178,7 @@ ext {
 }
 
 dependencies {
-    implementation "io.github.wulkanowy:sdk:1.6.0"
+    implementation "io.github.wulkanowy:sdk:189f5ecee0"
 
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt
index 5d5ed504c..39f376f65 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt
@@ -35,9 +35,11 @@ class AttendanceAdapter @Inject constructor() :
 
         with(holder.binding) {
             attendanceItemNumber.text = item.number.toString()
-            attendanceItemSubject.text = item.subject
+            attendanceItemSubject.text = item.subject.ifBlank {
+                root.context.getString(R.string.all_no_data)
+            }
             attendanceItemDescription.setText(item.descriptionRes)
-            attendanceItemAlert.visibility = item.run { if (absence && !excused) View.VISIBLE else View.INVISIBLE }
+            attendanceItemAlert.isVisible = item.let { it.absence && !it.excused }
             attendanceItemNumber.visibility = View.GONE
             attendanceItemExcuseInfo.visibility = View.GONE
             attendanceItemExcuseCheckbox.visibility = View.GONE
@@ -46,7 +48,7 @@ class AttendanceAdapter @Inject constructor() :
                 onExcuseCheckboxSelect(item, checked)
             }
 
-            when (item.excuseStatus?.let { SentExcuseStatus.valueOf(it)}) {
+            when (item.excuseStatus?.let { SentExcuseStatus.valueOf(it) }) {
                 SentExcuseStatus.WAITING -> {
                     attendanceItemExcuseInfo.setImageResource(R.drawable.ic_excuse_waiting)
                     attendanceItemExcuseInfo.visibility = View.VISIBLE