diff --git a/src/Resources/config/doctrine/BaseGallery.orm.xml b/src/Resources/config/doctrine/BaseGallery.orm.xml
index f5a4154ae..c73d23a4a 100644
--- a/src/Resources/config/doctrine/BaseGallery.orm.xml
+++ b/src/Resources/config/doctrine/BaseGallery.orm.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<doctrine-mapping xmlns="https://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
     <mapped-superclass name="Sonata\MediaBundle\Entity\BaseGallery">
         <field name="name" type="string" column="name" length="255"/>
         <field name="context" type="string" column="context" length="64"/>
diff --git a/src/Resources/config/doctrine/BaseGalleryItem.orm.xml b/src/Resources/config/doctrine/BaseGalleryItem.orm.xml
index d3b21418d..575e4b797 100644
--- a/src/Resources/config/doctrine/BaseGalleryItem.orm.xml
+++ b/src/Resources/config/doctrine/BaseGalleryItem.orm.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<doctrine-mapping xmlns="https://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
     <mapped-superclass name="Sonata\MediaBundle\Entity\BaseGalleryItem">
         <field name="position" type="integer" column="position"/>
         <field name="enabled" type="boolean" column="enabled"/>
diff --git a/src/Resources/config/doctrine/BaseMedia.orm.xml b/src/Resources/config/doctrine/BaseMedia.orm.xml
index 9930ce1aa..4b20327ce 100644
--- a/src/Resources/config/doctrine/BaseMedia.orm.xml
+++ b/src/Resources/config/doctrine/BaseMedia.orm.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<doctrine-mapping xmlns="https://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://doctrine-project.org/schemas/orm/doctrine-mapping https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
     <mapped-superclass name="Sonata\MediaBundle\Entity\BaseMedia">
         <field name="name" column="name" type="string" length="255"/>
         <field name="description" column="description" type="text" nullable="true" length="1024"/>