diff --git a/app/src/main/java/siarhei/luskanau/managed/virtual/device/FirstFragment.kt b/app/src/main/java/siarhei/luskanau/managed/virtual/device/FirstFragment.kt
index 911a054..fd1cebd 100644
--- a/app/src/main/java/siarhei/luskanau/managed/virtual/device/FirstFragment.kt
+++ b/app/src/main/java/siarhei/luskanau/managed/virtual/device/FirstFragment.kt
@@ -12,18 +12,18 @@ import siarhei.luskanau.managed.virtual.device.databinding.FragmentFirstBinding
  * A simple [Fragment] subclass as the default destination in the navigation.
  */
 class FirstFragment : Fragment() {
-    private var _binding: FragmentFirstBinding? = null
+    private var bindingLocal: FragmentFirstBinding? = null
 
     // This property is only valid between onCreateView and
     // onDestroyView.
-    private val binding get() = _binding!!
+    private val binding get() = bindingLocal!!
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentFirstBinding.inflate(inflater, container, false)
+    ): View {
+        bindingLocal = FragmentFirstBinding.inflate(inflater, container, false)
         return binding.root
     }
 
@@ -37,6 +37,6 @@ class FirstFragment : Fragment() {
 
     override fun onDestroyView() {
         super.onDestroyView()
-        _binding = null
+        bindingLocal = null
     }
 }
diff --git a/app/src/main/java/siarhei/luskanau/managed/virtual/device/SecondFragment.kt b/app/src/main/java/siarhei/luskanau/managed/virtual/device/SecondFragment.kt
index a06e991..567947e 100644
--- a/app/src/main/java/siarhei/luskanau/managed/virtual/device/SecondFragment.kt
+++ b/app/src/main/java/siarhei/luskanau/managed/virtual/device/SecondFragment.kt
@@ -12,18 +12,18 @@ import siarhei.luskanau.managed.virtual.device.databinding.FragmentSecondBinding
  * A simple [Fragment] subclass as the second destination in the navigation.
  */
 class SecondFragment : Fragment() {
-    private var _binding: FragmentSecondBinding? = null
+    private var bindingLocal: FragmentSecondBinding? = null
 
     // This property is only valid between onCreateView and
     // onDestroyView.
-    private val binding get() = _binding!!
+    private val binding get() = bindingLocal!!
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentSecondBinding.inflate(inflater, container, false)
+    ): View {
+        bindingLocal = FragmentSecondBinding.inflate(inflater, container, false)
         return binding.root
     }
 
@@ -37,6 +37,6 @@ class SecondFragment : Fragment() {
 
     override fun onDestroyView() {
         super.onDestroyView()
-        _binding = null
+        bindingLocal = null
     }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 078ec6c..d9539aa 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,7 +1,7 @@
 [versions]
-agp = "8.2.0"
-android-material = "1.10.0"
-androidx-navigation = "2.7.5"
+agp = "8.2.1"
+android-material = "1.11.0"
+androidx-navigation = "2.7.6"
 androidx-test-espresso = "3.6.0-alpha02"
 build-android-compileSdk = "34"
 build-android-minSdk = "21"
@@ -9,9 +9,9 @@ build-android-targetSdk = "34"
 build-javaVersion = "VERSION_17"
 build-jvmTarget = "17"
 detekt = "1.23.4"
-kotlin = "1.9.21"
+kotlin = "1.9.22"
 kotlinx-kover = "0.7.4"
-ktlint = "1.0.1"
+ktlint = "1.1.1"
 
 [libraries]
 android-material = { module = "com.google.android.material:material", version.ref = "android-material" }