diff --git a/src/main/resources/db/sqlite/V1__Initial_version.sql b/src/main/resources/db/sqlite/V1__Initial_version.sql
index 912e699..ee32961 100644
--- a/src/main/resources/db/sqlite/V1__Initial_version.sql
+++ b/src/main/resources/db/sqlite/V1__Initial_version.sql
@@ -125,7 +125,7 @@
 CREATE TABLE IF NOT EXISTS doc_store (
 id INTEGER PRIMARY KEY AUTOINCREMENT,
 persistent_id VARCHAR(265) UNIQUE,
-created TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+created DATE DEFAULT CURRENT_TIMESTAMP,
 disabled BOOLEAN default true
 );
 
diff --git a/src/main/resources/default-config.xml b/src/main/resources/default-config.xml
index 7d21bdd..db14aab 100644
--- a/src/main/resources/default-config.xml
+++ b/src/main/resources/default-config.xml
@@ -60,20 +60,21 @@
         <property name="properties" ref="props"/>
     </bean>
 
+    <!--class="org.apache.commons.dbcp2.BasicDataSource"-->
     <bean id="dataSource"
-          class="org.apache.commons.dbcp2.BasicDataSource"
+          class="org.springframework.jdbc.datasource.SingleConnectionDataSource"
           lazy-init="true">
         <property name="driverClassName" value="${jdbc.driverClassName}"/>
         <property name="url" value="${jdbc.url}"/>
         <property name="username" value="${jdbc.username}"/>
         <property name="password" value="${jdbc.password}"/>
         <!-- relevant for single connection datasource and sqlite -->
-        <!--<property name="suppressClose">-->
-        <!--<value>true</value>-->
-        <!--</property>-->
-        <property name="initialSize" value="1"/>
-        <property name="maxIdle" value="1"/>
-        <property name="poolPreparedStatements" value="true"/>
+        <property name="suppressClose">
+            <value>true</value>
+        </property>
+        <!--<property name="initialSize" value="1"/>-->
+        <!--<property name="maxIdle" value="1"/>-->
+        <!--<property name="poolPreparedStatements" value="true"/>-->
     </bean>
 
     <!-- to configure database for sqlite, mysql, etc. migrations -->
diff --git a/src/main/resources/log4j.properties b/src/main/resources/log4j.properties
index 602c496..ff5d34c 100644
--- a/src/main/resources/log4j.properties
+++ b/src/main/resources/log4j.properties
@@ -1,7 +1,7 @@
 
 # Root logger option
 #log4j.threshold=ALL
-log4j.rootLogger=INFO, stdout, debugLog
+log4j.rootLogger=DEBUG, stdout, debugLog
 log4j.logger.log=ERROR, errorLog
 
 # Direct log messages to stdout