diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 00000000..61a9130c
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="1.8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 7bfef59d..d5d35ec4 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index 00b7ef35..5bdd3da8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -37,8 +37,8 @@ android {
         applicationId "xyz.quaver.pupil"
         minSdkVersion 16
         targetSdkVersion 30
-        versionCode 62
-        versionName "5.1.3-hotfix1"
+        versionCode 63
+        versionName "5.1.4"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables.useSupportLibrary = true
     }
@@ -84,7 +84,7 @@ dependencies {
     implementation "androidx.activity:activity-ktx:1.2.0-beta01"
     implementation "androidx.fragment:fragment-ktx:1.3.0-beta01"
     implementation "androidx.preference:preference:1.1.1"
-    implementation "androidx.constraintlayout:constraintlayout:2.0.1"
+    implementation "androidx.constraintlayout:constraintlayout:2.0.2"
     implementation "androidx.gridlayout:gridlayout:1.0.0"
     implementation "androidx.biometric:biometric:1.0.1"
     implementation "androidx.work:work-runtime-ktx:2.4.0"
@@ -93,8 +93,8 @@ dependencies {
 
     implementation "com.google.android.material:material:1.3.0-alpha03"
 
-    implementation "com.google.firebase:firebase-core:17.5.0"
-    implementation "com.google.firebase:firebase-analytics:17.5.0"
+    implementation "com.google.firebase:firebase-core:17.5.1"
+    implementation "com.google.firebase:firebase-analytics:17.6.0"
     implementation "com.google.firebase:firebase-crashlytics:17.2.2"
     implementation "com.google.firebase:firebase-perf:19.0.9"
 
diff --git a/app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt b/app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt
deleted file mode 100644
index 8c1d5b4b..00000000
--- a/app/src/main/java/xyz/quaver/pupil/util/SetLineOverlap.kt
+++ /dev/null
@@ -1,37 +0,0 @@
-package xyz.quaver.pupil.util
-
-import android.graphics.Paint
-import android.text.style.LineHeightSpan
-
-class SetLineOverlap(private val overlap: Boolean) : LineHeightSpan {
-    companion object {
-        private var originalBottom = 15
-        private var originalDescent = 13
-        private var overlapSaved = false
-    }
-
-    override fun chooseHeight(
-        text: CharSequence?,
-        start: Int,
-        end: Int,
-        spanstartv: Int,
-        lineHeight: Int,
-        fm: Paint.FontMetricsInt?
-    ) {
-        fm ?: return
-
-        if (overlap) {
-            if (overlapSaved) {
-                originalBottom = fm.bottom
-                originalDescent = fm.descent
-                overlapSaved = true
-            }
-            fm.bottom += fm.top
-            fm.descent += fm.top
-        } else {
-            fm.bottom = originalBottom
-            fm.descent = originalDescent
-            overlapSaved = false
-        }
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/quaver/pupil/util/file.kt b/app/src/main/java/xyz/quaver/pupil/util/file.kt
index c7aec1e8..159c0477 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/file.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/file.kt
@@ -55,7 +55,7 @@ fun cleanCache(context: Context) = CoroutineScope(Dispatchers.IO).launch {
             while (cacheSize.invoke() > limit/2) {
                 val caches = cacheFolder.list() ?: return@withLock
 
-                (histories.firstOrNull {
+                (histories.toList().firstOrNull {
                     caches.contains(it.toString()) && !downloadManager.isDownloading(it)
                 } ?: return@withLock).let {
                     Cache.delete(context, it)
diff --git a/build.gradle b/build.gradle
index 11d2fe93..71d6cbec 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.0.1"
+        classpath 'com.android.tools.build:gradle:4.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
@@ -14,7 +14,7 @@ buildscript {
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
         classpath "com.google.firebase:firebase-crashlytics-gradle:2.3.0"
-        classpath "com.google.firebase:perf-plugin:1.3.1"
+        classpath "com.google.firebase:perf-plugin:1.3.2"
         classpath "com.google.android.gms:oss-licenses-plugin:0.10.2"
     }
 }