diff --git a/app/build.gradle b/app/build.gradle
index 9eb8902..b822b78 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'com.jakewharton.butterknife'
 
 android {
     compileSdkVersion 25
-    buildToolsVersion '25.0.2'
+    buildToolsVersion '25.0.3'
 
     defaultConfig {
         applicationId "com.sunfusheng.StickyHeaderListView"
diff --git a/app/src/main/java/com/sunfusheng/StickyHeaderListView/util/ColorUtil.java b/app/src/main/java/com/sunfusheng/StickyHeaderListView/util/ColorUtil.java
index 868c2ae..1d8c9d1 100644
--- a/app/src/main/java/com/sunfusheng/StickyHeaderListView/util/ColorUtil.java
+++ b/app/src/main/java/com/sunfusheng/StickyHeaderListView/util/ColorUtil.java
@@ -7,7 +7,6 @@
  */
 public class ColorUtil {
 
-
     // 合成新的颜色值
     public static int getNewColorByStartEndColor(Context context, float fraction, int startValue, int endValue) {
         return evaluate(fraction, context.getResources().getColor(startValue), context.getResources().getColor(endValue));
diff --git a/build.gradle b/build.gradle
index 80d65f4..d0d3ba4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.2'
+        classpath 'com.android.tools.build:gradle:2.3.3'
         classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0'
     }
 }