diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 3a1841171..410bd7c5e 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -125,13 +125,13 @@ dependencies {
 
     // AndroidX libraries
     implementation("androidx.annotation:annotation:1.3.0-alpha01")
-    implementation("androidx.appcompat:appcompat:1.3.0-rc01")
+    implementation("androidx.appcompat:appcompat:1.3.0")
     implementation("androidx.biometric:biometric-ktx:1.2.0-alpha03")
     implementation("androidx.browser:browser:1.3.0")
     implementation("androidx.cardview:cardview:1.0.0")
     implementation("androidx.constraintlayout:constraintlayout:2.1.0-beta02")
     implementation("androidx.coordinatorlayout:coordinatorlayout:1.1.0")
-    implementation("androidx.core:core-ktx:1.3.2")
+    implementation("androidx.core:core-ktx:1.5.0")
     implementation("androidx.multidex:multidex:2.0.1")
     implementation("androidx.preference:preference-ktx:1.1.1")
     implementation("androidx.recyclerview:recyclerview:1.2.0")
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
index 9d1f92858..9a7dffcae 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
@@ -99,7 +99,7 @@ class BackupCreateService : Service() {
         if (intent == null) return START_NOT_STICKY
 
         try {
-            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
+            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)!!
             val backupFlags = intent.getIntExtra(BackupConst.EXTRA_FLAGS, 0)
             val backupFileUri = FullBackupManager(this).createBackup(uri, backupFlags, false)?.toUri()
             val unifile = UniFile.fromUri(this, backupFileUri)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt b/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
index 503795fd2..ea3a073d7 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
@@ -58,21 +58,21 @@ class NotificationReceiver : BroadcastReceiver() {
             ACTION_SHARE_IMAGE ->
                 shareImage(
                     context,
-                    intent.getStringExtra(EXTRA_FILE_LOCATION),
+                    intent.getStringExtra(EXTRA_FILE_LOCATION)!!,
                     intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                 )
             // Delete image from path and dismiss notification
             ACTION_DELETE_IMAGE ->
                 deleteImage(
                     context,
-                    intent.getStringExtra(EXTRA_FILE_LOCATION),
+                    intent.getStringExtra(EXTRA_FILE_LOCATION)!!,
                     intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                 )
             // Share backup file
             ACTION_SHARE_BACKUP ->
                 shareFile(
                     context,
-                    intent.getParcelableExtra(EXTRA_URI),
+                    intent.getParcelableExtra(EXTRA_URI)!!,
                     "application/x-protobuf+gzip",
                     intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                 )
@@ -106,7 +106,7 @@ class NotificationReceiver : BroadcastReceiver() {
             ACTION_SHARE_CRASH_LOG ->
                 shareFile(
                     context,
-                    intent.getParcelableExtra(EXTRA_URI),
+                    intent.getParcelableExtra(EXTRA_URI)!!,
                     "text/plain",
                     intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                 )
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
index c8da67c04..a66824e57 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
@@ -91,7 +91,7 @@ class WebViewActivity : BaseViewBindingActivity<WebviewActivityBinding>() {
                 }
             }
         } else {
-            binding.webview.restoreState(bundle)
+            binding.webview.restoreState(bundle!!)
         }
 
         if (bundle == null) {
@@ -199,7 +199,7 @@ class WebViewActivity : BaseViewBindingActivity<WebviewActivityBinding>() {
     }
 
     private fun openInBrowser() {
-        openInBrowser(binding.webview.url)
+        openInBrowser(binding.webview.url!!)
     }
 
     companion object {
diff --git a/buildSrc/src/main/kotlin/AndroidConfig.kt b/buildSrc/src/main/kotlin/AndroidConfig.kt
index 5dfa2a8ab..30dbd57a7 100644
--- a/buildSrc/src/main/kotlin/AndroidConfig.kt
+++ b/buildSrc/src/main/kotlin/AndroidConfig.kt
@@ -1,5 +1,5 @@
 object AndroidConfig {
-    const val compileSdk = 29
+    const val compileSdk = 30
     const val minSdk = 23
     const val targetSdk = 29
     const val buildTools = "30.0.3"