diff --git a/app/build.gradle b/app/build.gradle
index ceeed29a34..c84895a129 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -110,7 +110,7 @@ dependencies {
     // Android support library
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
     implementation 'androidx.preference:preference:1.1.0'
     implementation 'androidx.annotation:annotation:1.1.0'
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
index bc1ba74abf..57f88346dc 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
@@ -30,7 +30,7 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
 
     private val preferences by injectLazy<PreferencesHelper>()
 
-    private var behavior: BottomSheetBehavior<*>? = null
+    private var sheetBehavior: BottomSheetBehavior<*>? = null
 
     /**
      * Subscriptions used for this dialog
@@ -51,7 +51,7 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
         val view = activity.layoutInflater.inflate(R.layout.reader_color_filter_sheet, null)
         setContentView(view)
 
-        behavior = BottomSheetBehavior.from(view.parent as ViewGroup)
+        sheetBehavior = BottomSheetBehavior.from(view.parent as ViewGroup)
 
         // Initialize subscriptions.
         subscriptions += preferences.colorFilter().asObservable()
@@ -138,8 +138,8 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
 
     override fun onStart() {
         super.onStart()
-        behavior?.skipCollapsed = true
-        behavior?.state = BottomSheetBehavior.STATE_EXPANDED
+        sheetBehavior?.skipCollapsed = true
+        sheetBehavior?.state = BottomSheetBehavior.STATE_EXPANDED
     }
 
     override fun onDetachedFromWindow() {