diff --git a/app/build.gradle b/app/build.gradle
index 6af13a5..238e805 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -48,8 +48,8 @@ dependencies {
     implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.4.0"
 
     // Coroutines
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0-RC"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.0-RC"
 
     // Hilt
     implementation "com.google.dagger:hilt-android:2.40.2"
diff --git a/app/src/main/java/com/hoc081098/paginationmviflow/ui/main/MainVM.kt b/app/src/main/java/com/hoc081098/paginationmviflow/ui/main/MainVM.kt
index 65981f6..6a1be98 100644
--- a/app/src/main/java/com/hoc081098/paginationmviflow/ui/main/MainVM.kt
+++ b/app/src/main/java/com/hoc081098/paginationmviflow/ui/main/MainVM.kt
@@ -6,8 +6,6 @@ import com.hoc081098.paginationmviflow.FlowTransformer
 import com.hoc081098.paginationmviflow.pipe
 import com.hoc081098.paginationmviflow.ui.main.MainContract.PartialStateChange
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -29,10 +27,6 @@ import com.hoc081098.paginationmviflow.ui.main.MainContract.SingleEvent as SE
 import com.hoc081098.paginationmviflow.ui.main.MainContract.ViewIntent as VI
 import com.hoc081098.paginationmviflow.ui.main.MainContract.ViewState as VS
 
-@OptIn(
-  ExperimentalCoroutinesApi::class,
-  FlowPreview::class
-)
 @HiltViewModel
 class MainVM @Inject constructor(
   private val mainProcessors: MainProcessors,
diff --git a/app/src/main/java/com/hoc081098/paginationmviflow/util.kt b/app/src/main/java/com/hoc081098/paginationmviflow/util.kt
index 207c4bd..f1af159 100644
--- a/app/src/main/java/com/hoc081098/paginationmviflow/util.kt
+++ b/app/src/main/java/com/hoc081098/paginationmviflow/util.kt
@@ -13,7 +13,6 @@ import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
 import androidx.recyclerview.widget.RecyclerView
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.flow.Flow
@@ -22,9 +21,11 @@ import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
 
 fun interface FlowTransformer<I, O> {
+  @CheckResult
   fun transform(input: Flow<I>): Flow<O>
 }
 
+@CheckResult
 @Suppress("NOTHING_TO_INLINE")
 inline fun <I, O> Flow<I>.pipe(transformer: FlowTransformer<I, O>) =
   transformer.transform(this)
@@ -35,7 +36,6 @@ fun Context.toast(text: CharSequence) = Toast.makeText(this, text, Toast.LENGTH_
 
 fun Fragment.toast(text: CharSequence) = requireContext().toast(text)
 
-@OptIn(ExperimentalCoroutinesApi::class)
 @CheckResult
 fun SwipeRefreshLayout.refreshes(): Flow<Unit> {
   return callbackFlow {
@@ -44,7 +44,6 @@ fun SwipeRefreshLayout.refreshes(): Flow<Unit> {
   }
 }
 
-@OptIn(ExperimentalCoroutinesApi::class)
 @CheckResult
 fun View.clicks(): Flow<View> {
   return callbackFlow {
@@ -55,7 +54,7 @@ fun View.clicks(): Flow<View> {
 
 data class RecyclerViewScrollEvent(val view: RecyclerView, val dx: Int, val dy: Int)
 
-@OptIn(ExperimentalCoroutinesApi::class)
+@CheckResult
 fun RecyclerView.scrollEvents(): Flow<RecyclerViewScrollEvent> {
   return callbackFlow {
     val listener = object : RecyclerView.OnScrollListener() {
@@ -74,7 +73,7 @@ fun RecyclerView.scrollEvents(): Flow<RecyclerViewScrollEvent> {
   }
 }
 
-@OptIn(ExperimentalCoroutinesApi::class)
+@CheckResult
 fun ViewGroup.detaches(): Flow<Unit> {
   return callbackFlow {
     val listener = object : View.OnAttachStateChangeListener {