diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 110b3c84a..4216f55a7 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -5,9 +5,13 @@ name: Java CI with Maven
 
 on:
   push:
-    branches: [ master ]
+    branches:
+    - master
+    - "*.x"
   pull_request:
-    branches: [ master ]
+    branches:
+    - master
+    - "*.x"
 
 jobs:
   build:
@@ -32,6 +36,7 @@ jobs:
       with:
         repository: codelibs/fess-parent
         path: fess-parent
+        ref: 13.16.x
     - name: Install fess-parent
       run: |
         cd fess-parent
diff --git a/dbflute.xml b/dbflute.xml
index 85a00de79..fe2745ff2 100644
--- a/dbflute.xml
+++ b/dbflute.xml
@@ -2,7 +2,7 @@
 <project name="dbflute" basedir=".">
 	<property name="mydbflute.dir" value="${basedir}/mydbflute" />
 	<property name="target.dir" value="${basedir}/target" />
-	<property name="branch.name" value="es-7.15" />
+	<property name="branch.name" value="es-7.16" />
 	<property name="mydbflute.url" value="https://github.com/lastaflute/lastaflute-example-waterfront/archive/${branch.name}.zip" />
 
 	<target name="mydbflute.check">
diff --git a/pom.xml b/pom.xml
index 66f54905d..86c60f078 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>fess</artifactId>
-	<version>13.15.2-SNAPSHOT</version>
+	<version>13.16.0-SNAPSHOT</version>
 	<packaging>war</packaging>
 	<name>Fess</name>
 	<description>Fess is Full tExt Search System.</description>
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>org.codelibs.fess</groupId>
 		<artifactId>fess-parent</artifactId>
-		<version>13.15.1</version>
+		<version>13.16.0-SNAPSHOT</version>
 		<relativePath />
 	</parent>
 	<properties>