diff --git a/pom.xml b/pom.xml
index 425dd48..0d8914c 100755
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
 
 	<groupId>jp.oiyokan</groupId>
 	<artifactId>oiyokan</artifactId>
-	<version>1.3.20210417</version>
+	<version>1.4.20210417</version>
 	<name>oiyokan</name>
 	<description>Oiyokan is a simple OData v4 Server. (based on Apache
 		Olingo / Spring Boot / h2 database)</description>
diff --git a/src/main/java/jp/oiyokan/OiyokanConstants.java b/src/main/java/jp/oiyokan/OiyokanConstants.java
index 933f470..ac1d1b7 100755
--- a/src/main/java/jp/oiyokan/OiyokanConstants.java
+++ b/src/main/java/jp/oiyokan/OiyokanConstants.java
@@ -27,7 +27,7 @@ public class OiyokanConstants {
     /**
      * Oiyokan のバージョン番号
      */
-    public static final String VERSION = "1.3.20210417a";
+    public static final String VERSION = "1.4.20210417b";
 
     /**
      * OData のルートパス.