diff --git a/Demo/TabPageViewControllerDemo/ViewController.swift b/Demo/TabPageViewControllerDemo/ViewController.swift
index c258134..3a38a28 100644
--- a/Demo/TabPageViewControllerDemo/ViewController.swift
+++ b/Demo/TabPageViewControllerDemo/ViewController.swift
@@ -55,5 +55,8 @@ class ViewController: UIViewController {
         option.tabMargin = 30.0
         tc.option = option
         navigationController?.pushViewController(tc, animated: true)
+
+        // Change tab title
+        tc.setTabItemTitle("Mon.(*)", at: 0)
     }
 }
diff --git a/Sources/TabPageViewController.swift b/Sources/TabPageViewController.swift
index 8d7ca25..7970801 100644
--- a/Sources/TabPageViewController.swift
+++ b/Sources/TabPageViewController.swift
@@ -29,7 +29,7 @@ open class TabPageViewController: UIPageViewController {
         return self.view.bounds.width
     }
     fileprivate var shouldScrollCurrentBar: Bool = true
-    lazy fileprivate var tabView: TabView = self.configuredTabView()
+    lazy open var tabView: TabView = self.configuredTabView()
     fileprivate var statusView: UIView?
     fileprivate var statusViewHeightConstraint: NSLayoutConstraint?
     fileprivate var tabBarTopConstraint: NSLayoutConstraint?
@@ -313,6 +313,16 @@ extension TabPageViewController: UIPageViewControllerDataSource {
     public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
         return nextViewController(viewController, isAfter: false)
     }
+
+    public func setTabItemTitle(_ title: String, at: Int) {
+        guard 0..<tabItems.count ~= at else {
+            print("Specified `at` argument was out of range")
+            return
+        }
+
+        tabItems[at].title = title
+        tabView.pageTabItems[at] = tabItems[at].title
+    }
 }
 
 
diff --git a/Sources/TabView.swift b/Sources/TabView.swift
index 0a870b7..dde5551 100644
--- a/Sources/TabView.swift
+++ b/Sources/TabView.swift
@@ -8,13 +8,19 @@
 
 import UIKit
 
-internal class TabView: UIView {
+open class TabView: UIView {
 
     var pageItemPressedBlock: ((_ index: Int, _ direction: UIPageViewControllerNavigationDirection) -> Void)?
     var pageTabItems: [String] = [] {
         didSet {
             pageTabItemsCount = pageTabItems.count
             beforeIndex = pageTabItems.count
+
+            // pageTabItems を変更したらリロード
+            if let c = collectionView {
+                print("Reload collectionView")
+                c.reloadData()
+            }
         }
     }
     var layouted: Bool = false
@@ -117,7 +123,7 @@ internal class TabView: UIView {
         bottomBarViewHeightConstraint.constant = 1.0 / UIScreen.main.scale
     }
 
-    required internal init?(coder aDecoder: NSCoder) {
+    required public init?(coder aDecoder: NSCoder) {
         super.init(coder: aDecoder)
     }
 }
@@ -287,11 +293,11 @@ extension TabView {
 
 extension TabView: UICollectionViewDataSource {
 
-    internal func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
+    public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
         return isInfinity ? pageTabItemsCount * 3 : pageTabItemsCount
     }
 
-    internal func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
+    public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
         let cell = collectionView.dequeueReusableCell(withReuseIdentifier: TabCollectionCell.cellIdentifier(), for: indexPath) as! TabCollectionCell
         configureCell(cell, indexPath: indexPath)
         return cell
@@ -325,7 +331,7 @@ extension TabView: UICollectionViewDataSource {
         }
     }
 
-    func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
+    public func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
         // FIXME: Tabs are not displayed when processing is performed during introduction display
         if let cell = cell as? TabCollectionCell, layouted {
             let fixedIndex = isInfinity ? indexPath.item % pageTabItemsCount : indexPath.item
@@ -339,7 +345,7 @@ extension TabView: UICollectionViewDataSource {
 
 extension TabView: UICollectionViewDelegate {
 
-    internal func scrollViewDidScroll(_ scrollView: UIScrollView) {
+    public func scrollViewDidScroll(_ scrollView: UIScrollView) {
         if scrollView.isDragging {
             currentBarView.isHidden = true
             let indexPath = IndexPath(item: currentIndex, section: 0)
@@ -362,7 +368,7 @@ extension TabView: UICollectionViewDelegate {
 
     }
 
-    internal func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
+    public func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
         // Accept the touch event because animation is complete
         updateCollectionViewUserInteractionEnabled(true)
 
@@ -384,7 +390,7 @@ extension TabView: UICollectionViewDelegate {
 
 extension TabView: UICollectionViewDelegateFlowLayout {
 
-    internal func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
+    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
 
         if let size = cachedCellSizes[indexPath] {
             return size
@@ -398,11 +404,11 @@ extension TabView: UICollectionViewDelegateFlowLayout {
         return size
     }
 
-    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
+    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
         return 0.0
     }
 
-    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
+    public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
         return 0.0
     }
 }