diff --git a/README.md b/README.md
index a317e30..cd48a8b 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ lunar是一款无第三方依赖的公历(阳历)、农历(阴历、老黄历)
 <dependency>
   <groupId>cn.6tail</groupId>
   <artifactId>lunar</artifactId>
-  <version>1.3.8</version>
+  <version>1.3.9</version>
 </dependency>
 ```
 
diff --git a/README_EN.md b/README_EN.md
index 6af60b4..24b7128 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -12,7 +12,7 @@ lunar is a calendar library for Solar and Chinese Lunar.
 <dependency>
   <groupId>cn.6tail</groupId>
   <artifactId>lunar</artifactId>
-  <version>1.3.8</version>
+  <version>1.3.9</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 1dd84da..8ceed54 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>cn.6tail</groupId>
     <artifactId>lunar</artifactId>
     <packaging>jar</packaging>
-    <version>1.3.8</version>
+    <version>1.3.9</version>
     <name>${project.groupId}:${project.artifactId}</name>
     <url>https://github.com/6tail/lunar-java</url>
     <description>a calendar library for Solar and Chinese Lunar</description>
diff --git a/src/main/java/com/nlf/calendar/Solar.java b/src/main/java/com/nlf/calendar/Solar.java
index 36f38ba..6fd1052 100644
--- a/src/main/java/com/nlf/calendar/Solar.java
+++ b/src/main/java/com/nlf/calendar/Solar.java
@@ -358,7 +358,7 @@ public boolean isLeapYear() {
    * @return 0123456
    */
   public int getWeek() {
-    return ((int)getJulianDay() + 7000002) % 7;
+    return ((int)(getJulianDay() + 0.5) + 7000001) % 7;
   }
 
   /**
diff --git a/src/test/java/sample/BaZiTestNew.java b/src/test/java/sample/BaZiTestNew.java
index e1a292d..51c381f 100644
--- a/src/test/java/sample/BaZiTestNew.java
+++ b/src/test/java/sample/BaZiTestNew.java
@@ -77,7 +77,7 @@ public void testBazi2Solar6() {
   public void test7() {
     Solar solar = new Solar(2020, 5, 26, 23, 43, 0);
     Lunar lunar = solar.getLunar();
-    //庚子, 辛巳, 庚午, 丙子]
+    // [庚子, 辛巳, 庚午, 丙子]
     System.out.println(lunar.getEightChar());
   }
 
diff --git a/src/test/java/test/WeekTest.java b/src/test/java/test/WeekTest.java
index d89773d..f639cb9 100644
--- a/src/test/java/test/WeekTest.java
+++ b/src/test/java/test/WeekTest.java
@@ -97,4 +97,16 @@ public void test9(){
     Assert.assertEquals(3, solar.getWeek());
   }
 
+  @Test
+  public void test10(){
+    Assert.assertEquals(6, Solar.fromYmd(1961, 9, 30).getWeek());
+    Assert.assertEquals(6, Solar.fromYmdHms(1961, 9, 30, 23, 59, 59).getWeek());
+    Assert.assertEquals(6, Solar.fromYmdHms(1961, 9, 30, 20, 0, 0).getWeek());
+  }
+
+  @Test
+  public void test11(){
+    Assert.assertEquals(3, Solar.fromYmdHms(2021, 9, 15, 20, 0, 0).getWeek());
+  }
+
 }