diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderNavigationOverlayView.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderNavigationOverlayView.kt
index 6e17affc72..c7a2834534 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderNavigationOverlayView.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderNavigationOverlayView.kt
@@ -58,21 +58,21 @@ class ReaderNavigationOverlayView(context: Context, attributeSet: AttributeSet)
         strokeWidth = 8f
     }
 
-    override fun onDraw(canvas: Canvas?) {
+    override fun onDraw(canvas: Canvas) {
         if (navigation == null) return
 
         navigation?.regions?.forEach { region ->
             val rect = region.rectF
 
             // Scale rect from 1f,1f to screen width and height
-            canvas?.withScale(width.toFloat(), height.toFloat()) {
+            canvas.withScale(width.toFloat(), height.toFloat()) {
                 regionPaint.color = context.getColor(region.type.colorRes)
                 drawRect(rect, regionPaint)
             }
 
             // Don't want scale anymore because it messes with drawText
             // Translate origin to rect start (left, top)
-            canvas?.withTranslation(x = (width * rect.left), y = (height * rect.top)) {
+            canvas.withTranslation(x = (width * rect.left), y = (height * rect.top)) {
                 // Calculate center of rect width on screen
                 val x = width * (abs(rect.left - rect.right) / 2)
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonFrame.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonFrame.kt
index 43c981b25e..cedc45ab72 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonFrame.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonFrame.kt
@@ -75,7 +75,7 @@ class WebtoonFrame(context: Context) : FrameLayout(context) {
         }
 
         override fun onFling(
-            e1: MotionEvent,
+            e1: MotionEvent?,
             e2: MotionEvent,
             velocityX: Float,
             velocityY: Float,
diff --git a/buildSrc/src/main/kotlin/AndroidConfig.kt b/buildSrc/src/main/kotlin/AndroidConfig.kt
index f0cf6fc23b..f63c077296 100644
--- a/buildSrc/src/main/kotlin/AndroidConfig.kt
+++ b/buildSrc/src/main/kotlin/AndroidConfig.kt
@@ -1,5 +1,5 @@
 object AndroidConfig {
-    const val compileSdk = 33
+    const val compileSdk = 34
     const val minSdk = 23
     const val targetSdk = 29
     const val ndk = "22.1.7171670"