diff --git a/gradle.properties b/gradle.properties
index ba8177c..34786db 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -46,7 +46,7 @@ org.gradle.jvmargs=-Xmx1536M
 GROUP=com.alibaba.android
 ARTIFACT=tangram
 VERSION=1
-VERSION_NAME=3.1.9.3
+VERSION_NAME=3.1.9.5
 PACKAGING_TYPE=aar
 systemProp.compileSdkVersion=26
 systemProp.targetSdkVersion=26
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/dataparser/concrete/Card.java b/tangram/src/main/java/com/tmall/wireless/tangram/dataparser/concrete/Card.java
index 3265820..0572833 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/dataparser/concrete/Card.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/dataparser/concrete/Card.java
@@ -30,6 +30,8 @@
 import com.alibaba.android.vlayout.layout.FixAreaLayoutHelper;
 import com.alibaba.android.vlayout.layout.MarginLayoutHelper;
 
+import android.support.v4.util.ArrayMap;
+
 import com.tmall.wireless.tangram.Engine;
 import com.tmall.wireless.tangram.MVHelper;
 import com.tmall.wireless.tangram.TangramBuilder;
@@ -67,7 +69,6 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Basic Card, which will represent LayoutHelpers
@@ -123,7 +124,7 @@ public abstract class Card extends ComponentLifecycle {
     protected BaseCell mFooter;
 
     @NonNull
-    protected ConcurrentHashMap<Range<Integer>, Card> mChildren = new ConcurrentHashMap<>();
+    protected ArrayMap<Range<Integer>, Card> mChildren = new ArrayMap<>();
 
     @NonNull
     protected List<BaseCell> mCells = new ArrayList<>();
@@ -579,7 +580,7 @@ public List<BaseCell> getCells() {
     }
 
     @NonNull
-    public ConcurrentHashMap<Range<Integer>, Card> getChildren() {
+    public ArrayMap<Range<Integer>, Card> getChildren() {
         return mChildren;
     }
 
@@ -1052,8 +1053,8 @@ public JSONArray optJsonArrayParam(String key) {
 
     public Card findChildCardById(String id) {
         if (!mChildren.isEmpty()) {
-            for (Map.Entry<Range<Integer>, Card> entry : mChildren.entrySet()) {
-                Card card = entry.getValue();
+            for (int i = 0, size = mChildren.size(); i < size; i++) {
+                Card card = mChildren.valueAt(i);
                 if (card != null && card.id.equals(id)) {
                     return card;
                 }
@@ -1062,7 +1063,7 @@ public Card findChildCardById(String id) {
         return null;
     }
 
-    public ConcurrentHashMap<Range<Integer>, Card> getChildrenCards() {
+    public ArrayMap<Range<Integer>, Card> getChildrenCards() {
         return mChildren;
     }
 
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/BusSupport.java b/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/BusSupport.java
index 700d66f..1e79797 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/BusSupport.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/BusSupport.java
@@ -27,6 +27,7 @@
 import org.json.JSONObject;
 
 import android.support.annotation.NonNull;
+import android.support.v4.util.ArrayMap;
 import android.text.TextUtils;
 
 import java.util.ArrayList;
@@ -147,7 +148,7 @@ public static Event obtainEvent() {
      * returned object's field is filled provided params.
      */
     public static Event obtainEvent(String type, String sourceId,
-                                    ConcurrentHashMap<String, String> args, EventContext eventContext) {
+            ArrayMap<String, String> args, EventContext eventContext) {
         Event event = EventPool.sharedInstance().acquire();
         event.type = type;
         event.sourceId = sourceId;
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/Event.java b/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/Event.java
index 79ae10b..6ac9c8a 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/Event.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/eventbus/Event.java
@@ -24,7 +24,7 @@
 
 package com.tmall.wireless.tangram.eventbus;
 
-import java.util.concurrent.ConcurrentHashMap;
+import android.support.v4.util.ArrayMap;
 
 /**
  * Created by longerian on 16/4/26.
@@ -44,7 +44,7 @@ public class Event {
     /**
      * TangramOp1 args
      */
-    public ConcurrentHashMap<String, String> args;
+    public ArrayMap<String, String> args;
 
     /**
      * Context
@@ -52,7 +52,7 @@ public class Event {
     public EventContext eventContext;
 
     public Event() {
-        args = new ConcurrentHashMap<>();
+        args = new ArrayMap<>();
     }
 
     /**
diff --git a/tangram/src/main/java/com/tmall/wireless/tangram/structure/card/SlideCard.java b/tangram/src/main/java/com/tmall/wireless/tangram/structure/card/SlideCard.java
index 5192cb9..0a018c3 100644
--- a/tangram/src/main/java/com/tmall/wireless/tangram/structure/card/SlideCard.java
+++ b/tangram/src/main/java/com/tmall/wireless/tangram/structure/card/SlideCard.java
@@ -33,12 +33,12 @@
 
 import android.support.annotation.Keep;
 import android.support.annotation.NonNull;
+import android.support.v4.util.ArrayMap;
 
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Created by longerian on 17/1/27.
@@ -50,7 +50,7 @@ public class SlideCard extends WrapperCard implements SwipeCard {
 
     public static final String KEY_PAGE_COUNT = "pageCount";
 
-    private ConcurrentHashMap<String, String> args = new ConcurrentHashMap<String, String>();
+    private ArrayMap<String, String> args = new ArrayMap<String, String>();
 
     private int mIndex;