diff --git a/dbmigration/source/java/ch/systemsx/cisd/dbmigration/BasicDataSourceFactory.java b/dbmigration/source/java/ch/systemsx/cisd/dbmigration/BasicDataSourceFactory.java
index 016786e6ace9f51b6d1fec36c4e1cca1744b1adb..7acee165bc348cc86719875cb2bf48bce061c106 100644
--- a/dbmigration/source/java/ch/systemsx/cisd/dbmigration/BasicDataSourceFactory.java
+++ b/dbmigration/source/java/ch/systemsx/cisd/dbmigration/BasicDataSourceFactory.java
@@ -27,7 +27,7 @@ public class BasicDataSourceFactory implements IDataSourceFactory
 {
 
     /** @see GenericObjectPool#DEFAULT_MAX_ACTIVE */
-    private static final int DEFAULT_MAX_ACTIVE = 100;
+    private static final int DEFAULT_MAX_ACTIVE = 20;
 
     /** @see GenericObjectPool#DEFAULT_MAX_IDLE */
     private static final int DEFAULT_MAX_IDLE = DEFAULT_MAX_ACTIVE;