diff --git a/src/index.ts b/src/index.ts
index b1e8dd2..70ec9c5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -17,7 +17,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
 
   constructor(_el: HTMLElement, _series: LineTimeSerie[] = [], _options: LineOptions = {}) {
     super(_el, _series, _options);
-    this.coreSeries = new LineSeries(_series);
+    this.series = new LineSeries(_series);
   }
 
   renderMetrics(): void {
@@ -27,12 +27,12 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
     this.initLineGenerator();
     this.initAreaGenerator();
 
-    if(!this.coreSeries.isSeriesAvailable) {
+    if(!this.series.isSeriesAvailable) {
       this.renderNoDataPointsMessage();
       return;
     }
 
-    for(const serie of this.coreSeries.visibleSeries) {
+    for(const serie of this.series.visibleSeries) {
       this._renderMetric(serie);
     }
   }
@@ -111,7 +111,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
 
   appendCrosshairCircles(): void {
     // circle for each serie
-    this.coreSeries.visibleSeries.forEach((serie: LineTimeSerie, serieIdx: number) => {
+    this.series.visibleSeries.forEach((serie: LineTimeSerie, serieIdx: number) => {
       this.appendCrosshairCircle(serieIdx);
     });
   }
@@ -124,7 +124,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
       .attr('cx', -CROSSHAIR_BACKGROUND_RAIDUS)
       .attr('cy', -CROSSHAIR_BACKGROUND_RAIDUS)
       .attr('clip-path', `url(#${this.rectClipId})`)
-      .attr('fill', this.coreSeries.visibleSeries[serieIdx].color)
+      .attr('fill', this.series.visibleSeries[serieIdx].color)
       .style('opacity', CROSSHAIR_BACKGROUND_OPACITY)
       .style('pointer-events', 'none');
 
@@ -134,7 +134,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
       .attr('cy', -CROSSHAIR_CIRCLE_RADIUS)
       .attr('class', `crosshair-circle-${serieIdx}`)
       .attr('clip-path', `url(#${this.rectClipId})`)
-      .attr('fill', this.coreSeries.visibleSeries[serieIdx].color)
+      .attr('fill', this.series.visibleSeries[serieIdx].color)
       .attr('r', CROSSHAIR_CIRCLE_RADIUS)
       .style('pointer-events', 'none');
   }
@@ -146,7 +146,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
     this.moveCrosshairLine(eventX, eventY);
     const datapoints = this.findAndHighlightDatapoints(values.x, values.y);
 
-    this.coreOptions.callbackSharedCrosshairMove({
+    this.options.callbackSharedCrosshairMove({
       datapoints: datapoints,
       eventX, eventY
     });
@@ -157,7 +157,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   }
 
   moveCrosshairLine(xPosition: number, yPosition: number): void {
-    switch(this.coreOptions.crosshair.orientation) {
+    switch(this.options.crosshair.orientation) {
       case CrosshairOrientation.VERTICAL:
         this.crosshair.select('#crosshair-line-x')
           .attr('x1', xPosition)
@@ -177,7 +177,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
           .attr('y2', yPosition);
         return;
       default:
-        throw new Error(`Unknown type of crosshair orientaion: ${this.coreOptions.crosshair.orientation}`);
+        throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
     }
   }
 
@@ -205,7 +205,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   getClosestIndex(datapoints: [number, number][], xValue: number, yValue: number): number {
     let columnIdx; // 0 for x value, 1 for y value,
     let value; // xValue to y Value
-    switch(this.coreOptions.crosshair.orientation) {
+    switch(this.options.crosshair.orientation) {
       case CrosshairOrientation.VERTICAL:
         columnIdx = 0;
         value = xValue;
@@ -219,7 +219,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
         columnIdx = 1;
         value = yValue;
       default:
-        throw new Error(`Unknown type of crosshair orientaion: ${this.coreOptions.crosshair.orientation}`);
+        throw new Error(`Unknown type of crosshair orientaion: ${this.options.crosshair.orientation}`);
     }
     
     // TODO: d3.bisect is not the best way. Use binary search
@@ -248,7 +248,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
     // columnIdx: 1 for y, 0 for x
     // inverval: x/y value interval between data points
     // TODO: move it to base/state instead of timeInterval
-    const intervals = _.map(this.coreSeries.visibleSeries, serie => {
+    const intervals = _.map(this.series.visibleSeries, serie => {
       if(serie.datapoints.length < 2) {
         return undefined;
       }
@@ -272,7 +272,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
 
     // TDOO: is shift key pressed
     // TODO: need to refactor this object
-    this.coreOptions.callbackMouseMove({
+    this.options.callbackMouseMove({
       x: d3.event.pageX,
       y: d3.event.pageY,
       xVal: xValue,
@@ -284,11 +284,11 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   }
 
   findAndHighlightDatapoints(xValue: number, yValue: number): { value: [number, number], color: string, label: string }[] {
-    if(!this.coreSeries.isSeriesAvailable) {
+    if(!this.series.isSeriesAvailable) {
       return [];
     }
     let points = []; // datapoints in each metric that is closest to xValue/yValue position
-    this.coreSeries.visibleSeries.forEach((serie: LineTimeSerie) => {
+    this.series.visibleSeries.forEach((serie: LineTimeSerie) => {
       const closestDatapoint = this.getClosestDatapoint(serie, xValue, yValue);
       if(closestDatapoint === undefined) {
         this.hideCrosshairCircle(serie.idx);
@@ -315,21 +315,21 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
   }
 
   onMouseOut(): void {
-    this.coreOptions.callbackMouseOut();
+    this.options.callbackMouseOut();
     this.crosshair.style('display', 'none');
   }
 
   isDoubleClickActive(): boolean {
-    return this.coreOptions.doubleClickEvent.isActive;
+    return this.options.doubleClickEvent.isActive;
   }
 
-  // methods below rewrite cores, (move more methods here)
+  // methods below rewrite s, (move more methods here)
   protected zoomOut(): void {
     if(d3.event.type === 'dblclick' && !this.isDoubleClickActive()) {
       return;
     }
     // TODO: its not clear, why we use this orientation here. Mb its better to use separate option
-    const orientation: BrushOrientation = this.coreOptions.mouseZoomEvent.orientation;
+    const orientation: BrushOrientation = this.options.mouseZoomEvent.orientation;
     const xInterval = this.state.xValueRange[1] - this.state.xValueRange[0];
     const yInterval = this.state.yValueRange[1] - this.state.yValueRange[0];
     switch(orientation) {
@@ -364,7 +364,7 @@ export class LinePod extends ChartwerkPod<LineTimeSerie, LineOptions> {
       x: xAxisMiddleValue,
       y: yAxisMiddleValue
     }
-    this.coreOptions.callbackZoomOut(centers);
+    this.options.callbackZoomOut(centers);
   }
 }
 
diff --git a/yarn.lock b/yarn.lock
index edf1642..4aec6d8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6,12 +6,12 @@ __metadata:
   cacheKey: 8
 
 "@chartwerk/core@npm:latest":
-  version: 0.5.8
-  resolution: "@chartwerk/core@npm:0.5.8"
+  version: 0.6.0
+  resolution: "@chartwerk/core@npm:0.6.0"
   dependencies:
     d3: ^5.7.2
     lodash: ^4.14.149
-  checksum: 24b403af2703cc99ef3dee4793318ed71f4b02ed50bee6940774ccb392b8fbb53bb5353e91903b2c1ec815a8d2b830f2a2a2925d8e4380c64895ee2002b2baed
+  checksum: db368ea1ba1f9b48583c3da953998206329ea552eaff4e9f13cb02b25e0289464eca268baa86f045d62552a0859fc3ee2ccf70e7df95b58327bba217f9888169
   languageName: node
   linkType: hard