diff --git a/app/build.gradle b/app/build.gradle
index f7ccd7d7..e423c9fb 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -61,7 +61,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9"
     //implementation "org.jetbrains.kotlinx:kotlinx-serialization-core:1.0.0-RC"
diff --git a/app/src/main/res/layout/activity_reader.xml b/app/src/main/res/layout/activity_reader.xml
index fb72ebc9..a3774f0c 100644
--- a/app/src/main/res/layout/activity_reader.xml
+++ b/app/src/main/res/layout/activity_reader.xml
@@ -32,8 +32,8 @@
         app:fastScrollDirection="horizontal"
         app:handleDrawable="@drawable/thumb_horizontal"
         app:handleHasFixedSize="true"
-        app:handleHeight="72dp"
-        app:handleWidth="24dp"
+        app:handleHeight="24dp"
+        app:handleWidth="72dp"
         app:addLastItemPadding="true"
         app:popupDrawable="@color/transparent">
 
diff --git a/gradle.properties b/gradle.properties
index fc3611bf..04e31e7e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -19,4 +19,4 @@ kotlin.code.style=official
 android.enableJetifier=true
 android.useAndroidX=true
 
-kotlin_version=1.4.0
\ No newline at end of file
+kotlin_version=1.4.10
\ No newline at end of file