diff --git a/README.md b/README.md
index b0ea924..2415e01 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>1.3.5</version>
+  <version>1.3.6</version>
 </dependency>
 ```
 
diff --git a/README_EN.md b/README_EN.md
index 6325f2a..33233b0 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>1.3.5</version>
+  <version>1.3.6</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index d146396..65724b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>cn.6tail</groupId>
     <artifactId>lunar</artifactId>
     <packaging>jar</packaging>
-    <version>1.3.5</version>
+    <version>1.3.6</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 7e6874f..0851760 100644
--- a/src/main/java/com/nlf/calendar/Solar.java
+++ b/src/main/java/com/nlf/calendar/Solar.java
@@ -714,19 +714,17 @@ public Solar nextYear(int years) {
     int y = year + years;
     int m = month;
     int d = day;
-    // 2月处理
-    if (2 == m) {
+    if (1582 == y && 10 == m) {
+      if (d > 4 && d < 15) {
+        d += 10;
+      }
+    } else if (2 == m) {
       if (d > 28) {
         if (!SolarUtil.isLeapYear(y)) {
           d = 28;
         }
       }
     }
-    if (1582 == y && 10 == m) {
-      if (d > 4 && d < 15) {
-        d += 10;
-      }
-    }
     return fromYmdHms(y, m, d, hour, minute, second);
   }
 
@@ -740,18 +738,15 @@ public Solar nextMonth(int months) {
     int y = month.getYear();
     int m = month.getMonth();
     int d = day;
-    // 2月处理
-    if (2 == m) {
-      if (d > 28) {
-        if (!SolarUtil.isLeapYear(y)) {
-          d = 28;
-        }
-      }
-    }
     if (1582 == y && 10 == m) {
       if (d > 4 && d < 15) {
         d += 10;
       }
+    } else {
+      int maxDay = SolarUtil.getDaysOfMonth(y, m);
+      if (d > maxDay) {
+        d = maxDay;
+      }
     }
     return fromYmdHms(y, m, d, hour, minute, second);
   }
diff --git a/src/main/java/com/nlf/calendar/util/LunarUtil.java b/src/main/java/com/nlf/calendar/util/LunarUtil.java
index 9524070..1f612ae 100644
--- a/src/main/java/com/nlf/calendar/util/LunarUtil.java
+++ b/src/main/java/com/nlf/calendar/util/LunarUtil.java
@@ -159,7 +159,7 @@ public class LunarUtil{
       put("6-6",Collections.nCopies(1,"天贶节"));
       put("6-24",Collections.nCopies(1,"观莲节"));
       put("6-25",Collections.nCopies(1,"五谷母节"));
-      put("7-14",Collections.nCopies(1,"中元节"));
+      put("7-15",Collections.nCopies(1,"中元节"));
       put("7-22",Collections.nCopies(1,"财神节"));
       put("7-29",Collections.nCopies(1,"地藏节"));
       put("8-1",Collections.nCopies(1,"天灸日"));
diff --git a/src/test/java/test/SolarTest.java b/src/test/java/test/SolarTest.java
index 3d125cc..bfa421c 100644
--- a/src/test/java/test/SolarTest.java
+++ b/src/test/java/test/SolarTest.java
@@ -171,4 +171,28 @@ public void test26(){
     Assert.assertEquals("1582-09-29", solar.next(-6).toYmd());
   }
 
+  @Test
+  public void test27(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2023-09-30", solar.nextMonth(1).toYmd());
+  }
+
+  @Test
+  public void test28(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2023-10-31", solar.nextMonth(2).toYmd());
+  }
+
+  @Test
+  public void test29(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2025-08-31", solar.nextYear(2).toYmd());
+  }
+
+  @Test
+  public void test30(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2024-02-29", solar.nextMonth(6).toYmd());
+  }
+
 }