diff --git a/gitbucket.erd b/gitbucket.erd
index 25ae404..759b3cf 100644
--- a/gitbucket.erd
+++ b/gitbucket.erd
@@ -160,7 +160,23 @@
                         <supportSize>true</supportSize>
                         <type>2005</type>
                       </columnType>
-                      <size>10</size>
+                      <size></size>
+                      <notNull>false</notNull>
+                      <primaryKey>false</primaryKey>
+                      <description></description>
+                      <autoIncrement>false</autoIncrement>
+                      <defaultValue></defaultValue>
+                    </net.java.amateras.db.visual.model.ColumnModel>
+                    <net.java.amateras.db.visual.model.ColumnModel>
+                      <columnName>DEFAULT_BRANCH</columnName>
+                      <logicalName>Default Branch</logicalName>
+                      <columnType class="net.java.amateras.db.dialect.ColumnType">
+                        <name>VARCHAR</name>
+                        <logicalName>文字列</logicalName>
+                        <supportSize>true</supportSize>
+                        <type>12</type>
+                      </columnType>
+                      <size>100</size>
                       <notNull>false</notNull>
                       <primaryKey>false</primaryKey>
                       <description></description>
@@ -186,7 +202,7 @@
                     <net.java.amateras.db.visual.model.ColumnModel>
                       <columnName>UPDATED_DATE</columnName>
                       <logicalName>Updated Date</logicalName>
-                      <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../net.java.amateras.db.visual.model.ColumnModel[6]/columnType"/>
+                      <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../net.java.amateras.db.visual.model.ColumnModel[7]/columnType"/>
                       <size>10</size>
                       <notNull>true</notNull>
                       <primaryKey>false</primaryKey>
@@ -197,7 +213,7 @@
                     <net.java.amateras.db.visual.model.ColumnModel>
                       <columnName>LAST_ACTIVITY_DATE</columnName>
                       <logicalName>Last Activity Date</logicalName>
-                      <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../net.java.amateras.db.visual.model.ColumnModel[6]/columnType"/>
+                      <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../net.java.amateras.db.visual.model.ColumnModel[7]/columnType"/>
                       <size>10</size>
                       <notNull>true</notNull>
                       <primaryKey>false</primaryKey>
@@ -353,7 +369,7 @@
         <net.java.amateras.db.visual.model.ColumnModel>
           <columnName>REGISTERED_DATE</columnName>
           <logicalName>Registered Date</logicalName>
-          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[6]/columnType"/>
+          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[7]/columnType"/>
           <size>10</size>
           <notNull>true</notNull>
           <primaryKey>false</primaryKey>
@@ -364,7 +380,7 @@
         <net.java.amateras.db.visual.model.ColumnModel>
           <columnName>UPDATED_DATE</columnName>
           <logicalName>Updated Date</logicalName>
-          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[6]/columnType"/>
+          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[7]/columnType"/>
           <size>10</size>
           <notNull>true</notNull>
           <primaryKey>false</primaryKey>
@@ -375,7 +391,7 @@
         <net.java.amateras.db.visual.model.ColumnModel>
           <columnName>LAST_LOGIN_DATE</columnName>
           <logicalName>Last Login Date</logicalName>
-          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[6]/columnType"/>
+          <columnType class="net.java.amateras.db.dialect.ColumnType" reference="../../../targetConnections/net.java.amateras.db.visual.model.ForeignKeyModel/source/sourceConnections/net.java.amateras.db.visual.model.ForeignKeyModel/target/columns/net.java.amateras.db.visual.model.ColumnModel[7]/columnType"/>
           <size>10</size>
           <notNull>false</notNull>
           <primaryKey>false</primaryKey>
diff --git a/src/main/resources/update/1_0.sql b/src/main/resources/update/1_0.sql
index 2261d04..d94c77a 100644
--- a/src/main/resources/update/1_0.sql
+++ b/src/main/resources/update/1_0.sql
@@ -15,7 +15,8 @@
 		PROJECT_NAME VARCHAR(100) NOT NULL,
 		USER_ID INT NOT NULL,
 		PROJECT_TYPE INT DEFAULT 0 NOT NULL,
-		DESCRIPTION TEXT(10),
+		DESCRIPTION TEXT,
+		DEFAULT_BRANCH VARCHAR(100),
 		REGISTERED_DATE TIMESTAMP NOT NULL,
 		UPDATED_DATE TIMESTAMP NOT NULL,
 		LAST_ACTIVITY_DATE TIMESTAMP NOT NULL