diff --git a/app/build.gradle b/app/build.gradle
index bbf6100..6809395 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,18 +45,18 @@ android {
 }
 
 dependencies {
-    def nav_version = "2.3.5"
+    def nav_version = "2.4.0"
     def room_version = "2.4.1"
     implementation 'androidx.appcompat:appcompat:1.4.1'
     implementation "androidx.cardview:cardview:1.0.0"
     implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
     implementation 'androidx.core:core-ktx:1.7.0'
-    implementation 'androidx.fragment:fragment-ktx:1.4.0'
+    implementation 'androidx.fragment:fragment-ktx:1.4.1'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
     implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
-    implementation 'androidx.preference:preference-ktx:1.1.1'
+    implementation 'androidx.preference:preference-ktx:1.2.0'
     implementation 'androidx.recyclerview:recyclerview:1.2.1'
     implementation "androidx.room:room-runtime:$room_version"
     implementation "androidx.room:room-ktx:$room_version"
diff --git a/app/src/main/java/dev/lowrespalmtree/comet/Database.kt b/app/src/main/java/dev/lowrespalmtree/comet/Database.kt
index 4b111d4..402e362 100644
--- a/app/src/main/java/dev/lowrespalmtree/comet/Database.kt
+++ b/app/src/main/java/dev/lowrespalmtree/comet/Database.kt
@@ -1,7 +1,6 @@
 package dev.lowrespalmtree.comet
 
 import android.content.Context
-import androidx.room.AutoMigration
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
diff --git a/app/src/main/java/dev/lowrespalmtree/comet/HistoryFragment.kt b/app/src/main/java/dev/lowrespalmtree/comet/HistoryFragment.kt
index 71df557..1f825f9 100644
--- a/app/src/main/java/dev/lowrespalmtree/comet/HistoryFragment.kt
+++ b/app/src/main/java/dev/lowrespalmtree/comet/HistoryFragment.kt
@@ -40,7 +40,7 @@ class HistoryFragment : Fragment(), HistoryItemAdapterListener {
         binding.list.layoutManager = LinearLayoutManager(requireContext())
         binding.list.adapter = adapter
 
-        vm.items.observe(viewLifecycleOwner, { adapter.setItems(it) })
+        vm.items.observe(viewLifecycleOwner) { adapter.setItems(it) }
 
         vm.refreshHistory()
     }
diff --git a/app/src/main/java/dev/lowrespalmtree/comet/PageAdapter.kt b/app/src/main/java/dev/lowrespalmtree/comet/PageAdapter.kt
index 0e37337..5a66a11 100644
--- a/app/src/main/java/dev/lowrespalmtree/comet/PageAdapter.kt
+++ b/app/src/main/java/dev/lowrespalmtree/comet/PageAdapter.kt
@@ -153,7 +153,7 @@ class PageAdapter(private val listener: ContentAdapterListener) :
                 }
             }
             is ContentBlock.Link -> {
-                val label = if (block.label.isNotBlank()) block.label else block.url
+                val label = block.label.ifBlank { block.url }
                 (holder as ContentViewHolder.Link).binding.textView.text = label
                 holder.binding.root.setOnClickListener { listener.onLinkClick(block.url) }
             }
diff --git a/app/src/main/java/dev/lowrespalmtree/comet/PageFragment.kt b/app/src/main/java/dev/lowrespalmtree/comet/PageFragment.kt
index 86f9d7a..ab61bf1 100644
--- a/app/src/main/java/dev/lowrespalmtree/comet/PageFragment.kt
+++ b/app/src/main/java/dev/lowrespalmtree/comet/PageFragment.kt
@@ -52,9 +52,9 @@ class PageFragment : Fragment(), ContentAdapterListener {
 
         binding.contentSwipeLayout.setOnRefreshListener { openUrl(vm.currentUrl) }
 
-        vm.state.observe(viewLifecycleOwner, { updateState(it) })
-        vm.lines.observe(viewLifecycleOwner, { updateLines(it) })
-        vm.event.observe(viewLifecycleOwner, { handleEvent(it) })
+        vm.state.observe(viewLifecycleOwner) { updateState(it) }
+        vm.lines.observe(viewLifecycleOwner) { updateLines(it) }
+        vm.event.observe(viewLifecycleOwner) { handleEvent(it) }
 
         activity?.onBackPressedDispatcher?.addCallback(viewLifecycleOwner) { onBackPressed() }
 
@@ -71,7 +71,7 @@ class PageFragment : Fragment(), ContentAdapterListener {
     }
 
     override fun onLinkClick(url: String) {
-        openUrl(url, base = if (vm.currentUrl.isNotEmpty()) vm.currentUrl else null)
+        openUrl(url, base = vm.currentUrl.ifEmpty { null })
     }
 
     private fun onBackPressed() {
@@ -208,7 +208,7 @@ class PageFragment : Fragment(), ContentAdapterListener {
             })
         }
         AlertDialog.Builder(requireContext())
-            .setMessage(if (prompt.isNotEmpty()) prompt else "Input required")
+            .setMessage(prompt.ifEmpty { "Input required" })
             .setView(inputView)
             .setPositiveButton(android.R.string.ok) { _, _ ->
                 val newUri = uri.buildUpon().query(editText.text.toString()).build()
diff --git a/build.gradle b/build.gradle
index 5f34279..d7baa0f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:7.0.4"
+        classpath 'com.android.tools.build:gradle:7.1.0'
         classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10'
         classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5"
     }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 6dd359d..689f280 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Mon Nov 29 12:01:36 CET 2021
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME