diff --git a/Charts/Classes/Utils/ChartUtils.swift b/Charts/Classes/Utils/ChartUtils.swift
index d7789d8fa2..cf60a96a6e 100755
--- a/Charts/Classes/Utils/ChartUtils.swift
+++ b/Charts/Classes/Utils/ChartUtils.swift
@@ -394,7 +394,7 @@ open class ChartUtils
             }
             else
             {
-                newArray.append(val as! NSObject)
+                newArray.append(val! as NSObject)
             }
         }
         return newArray
diff --git a/ChartsRealm/Classes/Data/RealmBarDataSet.swift b/ChartsRealm/Classes/Data/RealmBarDataSet.swift
index 8b1eea0764..c2040a8d30 100644
--- a/ChartsRealm/Classes/Data/RealmBarDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmBarDataSet.swift
@@ -247,7 +247,7 @@ open class RealmBarDataSet: RealmBarLineScatterCandleBubbleDataSet, IBarChartDat
     
     // MARK: - NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmBarDataSet
         copy._stackSize = _stackSize
diff --git a/ChartsRealm/Classes/Data/RealmBubbleDataSet.swift b/ChartsRealm/Classes/Data/RealmBubbleDataSet.swift
index 8d9fed1587..e3c6ab59ab 100644
--- a/ChartsRealm/Classes/Data/RealmBubbleDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmBubbleDataSet.swift
@@ -174,7 +174,7 @@ open class RealmBubbleDataSet: RealmBarLineScatterCandleBubbleDataSet, IBubbleCh
     
     // MARK: - NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmBubbleDataSet
         copy._xMin = _xMin
diff --git a/ChartsRealm/Classes/Data/RealmLineDataSet.swift b/ChartsRealm/Classes/Data/RealmLineDataSet.swift
index 6121c9ebcf..a2b0fd843a 100644
--- a/ChartsRealm/Classes/Data/RealmLineDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmLineDataSet.swift
@@ -177,7 +177,7 @@ open class RealmLineDataSet: RealmLineRadarDataSet, ILineChartDataSet
     
     // MARK: NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmLineDataSet
         copy.circleRadius = circleRadius
diff --git a/ChartsRealm/Classes/Data/RealmLineRadarDataSet.swift b/ChartsRealm/Classes/Data/RealmLineRadarDataSet.swift
index 1249b85251..cc2729f2bb 100644
--- a/ChartsRealm/Classes/Data/RealmLineRadarDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmLineRadarDataSet.swift
@@ -84,7 +84,7 @@ open class RealmLineRadarDataSet: RealmLineScatterCandleRadarDataSet, ILineRadar
     
     // MARK: NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmLineRadarDataSet
         copy.fillColor = fillColor
diff --git a/ChartsRealm/Classes/Data/RealmLineScatterCandleRadarDataSet.swift b/ChartsRealm/Classes/Data/RealmLineScatterCandleRadarDataSet.swift
index f5c2e38b55..7bbda69619 100644
--- a/ChartsRealm/Classes/Data/RealmLineScatterCandleRadarDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmLineScatterCandleRadarDataSet.swift
@@ -46,7 +46,7 @@ open class RealmLineScatterCandleRadarDataSet: RealmBarLineScatterCandleBubbleDa
     
     // MARK: NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmLineScatterCandleRadarDataSet
         copy.drawHorizontalHighlightIndicatorEnabled = drawHorizontalHighlightIndicatorEnabled
diff --git a/ChartsRealm/Classes/Data/RealmScatterDataSet.swift b/ChartsRealm/Classes/Data/RealmScatterDataSet.swift
index 7f8fa55287..6984b4af7c 100644
--- a/ChartsRealm/Classes/Data/RealmScatterDataSet.swift
+++ b/ChartsRealm/Classes/Data/RealmScatterDataSet.swift
@@ -47,7 +47,7 @@ open class RealmScatterDataSet: RealmLineScatterCandleRadarDataSet, IScatterChar
     
     // MARK: NSCopying
     
-    open override func copyWithZone(_ zone: NSZone?) -> AnyObject
+    open override func copyWithZone(_ zone: NSZone?) -> Any
     {
         let copy = super.copyWithZone(zone) as! RealmScatterDataSet
         copy.scatterShapeSize = scatterShapeSize