diff --git a/composer.json b/composer.json
index d7d1306..7f63f0e 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": ">=7.4",
-        "commongateway/corebundle": "^1.1.110 | <2.0"
+        "commongateway/corebundle": "^1.4.13 | <2.0"
     },
     "require-dev": {
         "symfony/dependency-injection": "~3.4|~4.1|~5.0"
diff --git a/docs/classes/README.md b/docs/classes/README.md
index 6094f0f..5ae3038 100644
--- a/docs/classes/README.md
+++ b/docs/classes/README.md
@@ -1,4 +1,4 @@
 # CommonGateway\FirstRegistrationBundle
 
-* [Service\InstallationService](Service/InstallationService.md)
-* [Service\FirstRegistrationService](Service/FirstRegistrationService.md)
+* [Service\InstallationService](Service/InstallationService.md) 
+* [Service\FirstRegistrationService](Service/FirstRegistrationService.md) 
diff --git a/docs/classes/Service/FirstRegistrationService.md b/docs/classes/Service/FirstRegistrationService.md
index 8754ca3..6b672d8 100644
--- a/docs/classes/Service/FirstRegistrationService.md
+++ b/docs/classes/Service/FirstRegistrationService.md
@@ -1,10 +1,16 @@
-# CommonGateway\FirstRegistrationBundle\Service\FirstRegistrationService
+# CommonGateway\FirstRegistrationBundle\Service\FirstRegistrationService  
+
+
+
+
+
+
 
 ## Methods
 
 | Name | Description |
 |------|-------------|
-|[\_\_construct](#firstregistrationservice__construct)||
+|[__construct](#firstregistrationservice__construct)||
 |[firstRegistrationHandler](#firstregistrationservicefirstregistrationhandler)|A first registration handler that is triggered by an action.|
 |[getRolValues](#firstregistrationservicegetrolvalues)|Gets the values from the zaakEigenschappen of the zaak.|
 |[getZaakEigenschappenValues](#firstregistrationservicegetzaakeigenschappenvalues)|Gets the values from the zaakEigenschappen of the zaak.|
@@ -13,7 +19,10 @@
 |[sendFirstRegistration](#firstregistrationservicesendfirstregistration)|A first registration handler that is triggered by an action.|
 |[zgwToFirstRegistrationHandler](#firstregistrationservicezgwtofirstregistrationhandler)|A first registration handler that is triggered by an action.|
 
-### FirstRegistrationService::\_\_construct
+
+
+
+### FirstRegistrationService::__construct  
 
 **Description**
 
@@ -21,6 +30,10 @@
  __construct (void)
 ```
 
+ 
+
+ 
+
 **Parameters**
 
 `This function has no parameters.`
@@ -29,9 +42,11 @@
 
 `void`
 
+
 <hr />
 
-### FirstRegistrationService::firstRegistrationHandler
+
+### FirstRegistrationService::firstRegistrationHandler  
 
 **Description**
 
@@ -39,14 +54,16 @@
 public firstRegistrationHandler (array $data, array $configuration)
 ```
 
-A first registration handler that is triggered by an action.
+A first registration handler that is triggered by an action. 
+
+ 
 
 **Parameters**
 
 * `(array) $data`
-  : The data array
+: The data array  
 * `(array) $configuration`
-  : The configuration array
+: The configuration array  
 
 **Return Values**
 
@@ -54,9 +71,11 @@ A first registration handler that is triggered by an action.
 
 > A handler must ALWAYS return an array
 
+
 <hr />
 
-### FirstRegistrationService::getRolValues
+
+### FirstRegistrationService::getRolValues  
 
 **Description**
 
@@ -64,14 +83,16 @@ A first registration handler that is triggered by an action.
 public getRolValues (\ObjectEntity $zaaktypeObject, \ObjectEntity $zaakObject)
 ```
 
-Gets the values from the zaakEigenschappen of the zaak.
+Gets the values from the zaakEigenschappen of the zaak. 
+
+ 
 
 **Parameters**
 
 * `(\ObjectEntity) $zaaktypeObject`
-  : The zaaktype object of the zaak.
+: The zaaktype object of the zaak.  
 * `(\ObjectEntity) $zaakObject`
-  : The zaak object.
+: The zaak object.  
 
 **Return Values**
 
@@ -79,9 +100,11 @@ Gets the values from the zaakEigenschappen of the zaak.
 
 > The values of the zaakEigenschappen.
 
+
 <hr />
 
-### FirstRegistrationService::getZaakEigenschappenValues
+
+### FirstRegistrationService::getZaakEigenschappenValues  
 
 **Description**
 
@@ -89,14 +112,16 @@ Gets the values from the zaakEigenschappen of the zaak.
 public getZaakEigenschappenValues (\ObjectEntity $zaaktypeObject, \ObjectEntity $zaakObject)
 ```
 
-Gets the values from the zaakEigenschappen of the zaak.
+Gets the values from the zaakEigenschappen of the zaak. 
+
+ 
 
 **Parameters**
 
 * `(\ObjectEntity) $zaaktypeObject`
-  : The zaaktype object of the zaak.
+: The zaaktype object of the zaak.  
 * `(\ObjectEntity) $zaakObject`
-  : The zaak object.
+: The zaak object.  
 
 **Return Values**
 
@@ -104,9 +129,11 @@ Gets the values from the zaakEigenschappen of the zaak.
 
 > The values of the zaakEigenschappen.
 
+
 <hr />
 
-### FirstRegistrationService::getZaaktype
+
+### FirstRegistrationService::getZaaktype  
 
 **Description**
 
@@ -114,7 +141,9 @@ Gets the values from the zaakEigenschappen of the zaak.
 public getZaaktype (void)
 ```
 
-Gets the zaaktype object from the zaak.
+Gets the zaaktype object from the zaak. 
+
+ 
 
 **Parameters**
 
@@ -126,9 +155,11 @@ Gets the zaaktype object from the zaak.
 
 > The zaaktype from the zaak.
 
+
 <hr />
 
-### FirstRegistrationService::removeSelf
+
+### FirstRegistrationService::removeSelf  
 
 **Description**
 
@@ -136,12 +167,14 @@ Gets the zaaktype object from the zaak.
 public removeSelf (array $object)
 ```
 
-Recursively removes self parameters from object.
+Recursively removes self parameters from object. 
+
+ 
 
 **Parameters**
 
 * `(array) $object`
-  : The object to remove self parameters from.
+: The object to remove self parameters from.  
 
 **Return Values**
 
@@ -149,9 +182,11 @@ Recursively removes self parameters from object.
 
 > The cleaned object.
 
+
 <hr />
 
-### FirstRegistrationService::sendFirstRegistration
+
+### FirstRegistrationService::sendFirstRegistration  
 
 **Description**
 
@@ -159,14 +194,16 @@ Recursively removes self parameters from object.
 public sendFirstRegistration (array $data, array $configuration)
 ```
 
-A first registration handler that is triggered by an action.
+A first registration handler that is triggered by an action. 
+
+ 
 
 **Parameters**
 
 * `(array) $data`
-  : The data array
+: The data array  
 * `(array) $configuration`
-  : The configuration array
+: The configuration array  
 
 **Return Values**
 
@@ -174,9 +211,11 @@ A first registration handler that is triggered by an action.
 
 > A handler must ALWAYS return an array
 
+
 <hr />
 
-### FirstRegistrationService::zgwToFirstRegistrationHandler
+
+### FirstRegistrationService::zgwToFirstRegistrationHandler  
 
 **Description**
 
@@ -184,14 +223,16 @@ A first registration handler that is triggered by an action.
 public zgwToFirstRegistrationHandler (array $data, array $configuration)
 ```
 
-A first registration handler that is triggered by an action.
+A first registration handler that is triggered by an action. 
+
+ 
 
 **Parameters**
 
 * `(array) $data`
-  : The data array
+: The data array  
 * `(array) $configuration`
-  : The configuration array
+: The configuration array  
 
 **Return Values**
 
@@ -199,4 +240,6 @@ A first registration handler that is triggered by an action.
 
 > A handler must ALWAYS return an array
 
+
 <hr />
+
diff --git a/docs/classes/Service/InstallationService.md b/docs/classes/Service/InstallationService.md
index d72c04f..8d3a2bc 100644
--- a/docs/classes/Service/InstallationService.md
+++ b/docs/classes/Service/InstallationService.md
@@ -1,20 +1,26 @@
-# CommonGateway\FirstRegistrationBundle\Service\InstallationService
+# CommonGateway\FirstRegistrationBundle\Service\InstallationService  
+
 
-## Implements:
 
+## Implements:
 CommonGateway\CoreBundle\Installer\InstallerInterface
 
+
+
 ## Methods
 
 | Name | Description |
 |------|-------------|
-|[\_\_construct](#installationservice__construct)|The constructor|
+|[__construct](#installationservice__construct)|The constructor|
 |[checkDataConsistency](#installationservicecheckdataconsistency)|The actual code run on update and installation of this bundle|
 |[install](#installationserviceinstall)|Every installation service should implement an install function|
 |[uninstall](#installationserviceuninstall)|Every installation service should implement an uninstall function|
 |[update](#installationserviceupdate)|Every installation service should implement an update function|
 
-### InstallationService::\_\_construct
+
+
+
+### InstallationService::__construct  
 
 **Description**
 
@@ -22,22 +28,26 @@ CommonGateway\CoreBundle\Installer\InstallerInterface
 public __construct (\EntityManagerInterface $entityManager, \LoggerInterface $installationLogger)
 ```
 
-The constructor
+The constructor 
+
+ 
 
 **Parameters**
 
 * `(\EntityManagerInterface) $entityManager`
-  : The entity manager.
+: The entity manager.  
 * `(\LoggerInterface) $installationLogger`
-  : The installation logger.
+: The installation logger.  
 
 **Return Values**
 
 `void`
 
+
 <hr />
 
-### InstallationService::checkDataConsistency
+
+### InstallationService::checkDataConsistency  
 
 **Description**
 
@@ -45,7 +55,9 @@ The constructor
 public checkDataConsistency (void)
 ```
 
-The actual code run on update and installation of this bundle
+The actual code run on update and installation of this bundle 
+
+ 
 
 **Parameters**
 
@@ -55,9 +67,13 @@ The actual code run on update and installation of this bundle
 
 `void`
 
+
+
+
 <hr />
 
-### InstallationService::install
+
+### InstallationService::install  
 
 **Description**
 
@@ -65,7 +81,9 @@ The actual code run on update and installation of this bundle
 public install (void)
 ```
 
-Every installation service should implement an install function
+Every installation service should implement an install function 
+
+ 
 
 **Parameters**
 
@@ -75,9 +93,13 @@ Every installation service should implement an install function
 
 `void`
 
+
+
+
 <hr />
 
-### InstallationService::uninstall
+
+### InstallationService::uninstall  
 
 **Description**
 
@@ -85,7 +107,9 @@ Every installation service should implement an install function
 public uninstall (void)
 ```
 
-Every installation service should implement an uninstall function
+Every installation service should implement an uninstall function 
+
+ 
 
 **Parameters**
 
@@ -95,9 +119,13 @@ Every installation service should implement an uninstall function
 
 `void`
 
+
+
+
 <hr />
 
-### InstallationService::update
+
+### InstallationService::update  
 
 **Description**
 
@@ -105,7 +133,9 @@ Every installation service should implement an uninstall function
 public update (void)
 ```
 
-Every installation service should implement an update function
+Every installation service should implement an update function 
+
+ 
 
 **Parameters**
 
@@ -115,4 +145,8 @@ Every installation service should implement an update function
 
 `void`
 
+
+
+
 <hr />
+
diff --git a/publiccode.yaml b/publiccode.yaml
index 69665e4..de8d63a 100644
--- a/publiccode.yaml
+++ b/publiccode.yaml
@@ -77,9 +77,9 @@ dependsOn:
       version: 1.2.47
       optional: false
     - name: CoreBundle
-      versionMin: 1.2
-      versionMax: 1.3
-      version: 1.2.47
+      versionMin: 1.4
+      versionMax: 1.5
+      version: 1.4.13
       optional: false
 roadmap: null
 inputTypes:
diff --git a/src/Service/FirstRegistrationService.php b/src/Service/FirstRegistrationService.php
index 677307c..9c903cc 100644
--- a/src/Service/FirstRegistrationService.php
+++ b/src/Service/FirstRegistrationService.php
@@ -268,7 +268,7 @@ public function zgwToFirstRegistrationHandler(array $data, array $configuration)
         $identification = $this->data['body']['SOAP-ENV:Body']['ns2:edcLk01']['ns2:object']['ns2:isRelevantVoor']['ns2:gerelateerde']['ns2:identificatie'];
 
         // Search zaak objects with the identification.
-        $zaken = $this->cacheService->searchObjects(null, ['identificatie' => $identification], [$schema->getId()->toString()])['results'];
+        $zaken = $this->cacheService->searchObjects(['identificatie' => $identification], [$schema->getId()->toString()])['results'];
 
         // Create error response if the document is not empty and if there is more then one result.
         if (empty($zaken) === false && count($zaken) > 1) {
@@ -313,7 +313,7 @@ public function zgwToFirstRegistrationHandler(array $data, array $configuration)
 
         // Loop through the
         $documents              = [];
-        $zaakInformatieObjecten = $this->cacheService->searchObjects(null, ['embedded.zaak.identificatie' => $identification], ['https://vng.opencatalogi.nl/schemas/zrc.zaakInformatieObject.schema.json'])['results'];
+        $zaakInformatieObjecten = $this->cacheService->searchObjects(['embedded.zaak.identificatie' => $identification], ['https://vng.opencatalogi.nl/schemas/zrc.zaakInformatieObject.schema.json'])['results'];
 
         foreach ($zaakInformatieObjecten as $zaakInfoArray) {
             $zaakInfoObject   = $this->entityManager->getRepository(ObjectEntity::class)->find($zaakInfoArray['_id']);
diff --git a/src/Service/ZGWDocumentToFileService.php b/src/Service/ZGWDocumentToFileService.php
index c586058..35a35f9 100644
--- a/src/Service/ZGWDocumentToFileService.php
+++ b/src/Service/ZGWDocumentToFileService.php
@@ -352,7 +352,7 @@ public function zgwDocumentToFileHandler(array $data, array $configuration): arr
         $identification = $this->data['body']['SOAP-ENV:Body']['ns2:edcLk01']['ns2:object']['ns2:identificatie'];
 
         // Search enkelvoudiginformatieobject objects with the identificatie in informatieobject identificatie.
-        $documenten = $this->cacheService->searchObjects(null, ['identificatie' => $identification], [$schema->getId()->toString()])['results'];
+        $documenten = $this->cacheService->searchObjects(['identificatie' => $identification], [$schema->getId()->toString()])['results'];
 
         // Create error response if the document is not empty and if there is more then one result.
         if (empty($documenten) === false && count($documenten) > 1) {