diff --git a/doma-spring-boot-autoconfigure/pom.xml b/doma-spring-boot-autoconfigure/pom.xml
index 03049dfa..18924e30 100644
--- a/doma-spring-boot-autoconfigure/pom.xml
+++ b/doma-spring-boot-autoconfigure/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/doma-spring-boot-core/pom.xml b/doma-spring-boot-core/pom.xml
index ca101ff0..b0577d6c 100644
--- a/doma-spring-boot-core/pom.xml
+++ b/doma-spring-boot-core/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/doma-spring-boot-jacoco-aggregate/pom.xml b/doma-spring-boot-jacoco-aggregate/pom.xml
index b1ea3c97..4269f4b9 100644
--- a/doma-spring-boot-jacoco-aggregate/pom.xml
+++ b/doma-spring-boot-jacoco-aggregate/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>doma-spring-boot-jacoco-aggregate</artifactId>
diff --git a/doma-spring-boot-samples/doma-spring-boot-sample-entity-listener/pom.xml b/doma-spring-boot-samples/doma-spring-boot-sample-entity-listener/pom.xml
index 96c037a8..271b3da2 100644
--- a/doma-spring-boot-samples/doma-spring-boot-sample-entity-listener/pom.xml
+++ b/doma-spring-boot-samples/doma-spring-boot-sample-entity-listener/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot-samples</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/doma-spring-boot-samples/doma-spring-boot-sample-event-handler/pom.xml b/doma-spring-boot-samples/doma-spring-boot-sample-event-handler/pom.xml
index ea5362ee..ce741f9b 100644
--- a/doma-spring-boot-samples/doma-spring-boot-sample-event-handler/pom.xml
+++ b/doma-spring-boot-samples/doma-spring-boot-sample-event-handler/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot-samples</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/doma-spring-boot-samples/doma-spring-boot-sample-simple/pom.xml b/doma-spring-boot-samples/doma-spring-boot-sample-simple/pom.xml
index 3f8a3f43..fd192244 100644
--- a/doma-spring-boot-samples/doma-spring-boot-sample-simple/pom.xml
+++ b/doma-spring-boot-samples/doma-spring-boot-sample-simple/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot-samples</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/doma-spring-boot-samples/doma-spring-boot-sample-two-datasource/pom.xml b/doma-spring-boot-samples/doma-spring-boot-sample-two-datasource/pom.xml
index d5f5a0e9..30a1ddfa 100644
--- a/doma-spring-boot-samples/doma-spring-boot-sample-two-datasource/pom.xml
+++ b/doma-spring-boot-samples/doma-spring-boot-sample-two-datasource/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.seasar.doma.boot</groupId>
 		<artifactId>doma-spring-boot-samples</artifactId>
-		<version>2.2.0</version>
+		<version>2.3.0-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/doma-spring-boot-samples/pom.xml b/doma-spring-boot-samples/pom.xml
index d0908f8a..45aa8f5c 100644
--- a/doma-spring-boot-samples/pom.xml
+++ b/doma-spring-boot-samples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>doma-spring-boot</artifactId>
         <groupId>org.seasar.doma.boot</groupId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
     </parent>
     <packaging>pom</packaging>
     <modelVersion>4.0.0</modelVersion>
diff --git a/doma-spring-boot-starter/pom.xml b/doma-spring-boot-starter/pom.xml
index 4bd9c32c..c5ea0b83 100644
--- a/doma-spring-boot-starter/pom.xml
+++ b/doma-spring-boot-starter/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.seasar.doma.boot</groupId>
         <artifactId>doma-spring-boot</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index 014baa27..1bb805d3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>org.seasar.doma.boot</groupId>
     <artifactId>doma-spring-boot</artifactId>
-    <version>2.2.0</version>
+    <version>2.3.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>doma-spring-boot</name>