diff --git a/src/Api/Management/Controller/AppCredentialController.php b/src/Api/Management/Controller/AppCredentialController.php
index 35271a92..b10432c4 100644
--- a/src/Api/Management/Controller/AppCredentialController.php
+++ b/src/Api/Management/Controller/AppCredentialController.php
@@ -25,7 +25,6 @@
 use Apigee\Edge\Controller\StatusAwareEntityControllerTrait;
 use Apigee\Edge\Denormalizer\AttributesPropertyDenormalizer;
 use Apigee\Edge\Denormalizer\CredentialProductDenormalizer;
-use Apigee\Edge\Entity\EntityInterface;
 use Apigee\Edge\Normalizer\CredentialProductNormalizer;
 use Apigee\Edge\Structure\AttributesProperty;
 
@@ -130,7 +129,7 @@ public function setApiProductStatus(string $consumerKey, string $apiProduct, str
     /**
      * @inheritdoc
      */
-    public function deleteApiProduct(string $consumerKey, string $apiProduct): EntityInterface
+    public function deleteApiProduct(string $consumerKey, string $apiProduct): AppCredentialInterface
     {
         $uri = $this->getBaseEndpointUri()->withPath("{$this->getBaseEndpointUri()}/keys/{$consumerKey}/apiproducts/{$apiProduct}");
         $response = $this->client->delete($uri);
@@ -162,7 +161,7 @@ public function overrideScopes(string $consumerKey, array $scopes): AppCredentia
     /**
      * {@inheritdoc}
      */
-    public function load(string $entityId): EntityInterface
+    public function load(string $entityId): AppCredentialInterface
     {
         $response = $this->client->get($this->getEntityEndpointUri($entityId));
 
@@ -176,7 +175,7 @@ public function load(string $entityId): EntityInterface
     /**
      * {@inheritdoc}
      */
-    public function delete(string $entityId): EntityInterface
+    public function delete(string $entityId): AppCredentialInterface
     {
         $response = $this->client->delete($this->getEntityEndpointUri($entityId));
 
diff --git a/src/Api/Management/Controller/AppCredentialControllerInterface.php b/src/Api/Management/Controller/AppCredentialControllerInterface.php
index 9249045d..345d1429 100644
--- a/src/Api/Management/Controller/AppCredentialControllerInterface.php
+++ b/src/Api/Management/Controller/AppCredentialControllerInterface.php
@@ -21,7 +21,6 @@
 use Apigee\Edge\Api\Management\Entity\AppCredentialInterface;
 use Apigee\Edge\Controller\EntityControllerInterface;
 use Apigee\Edge\Controller\StatusAwareEntityControllerInterface;
-use Apigee\Edge\Entity\EntityInterface;
 use Apigee\Edge\Structure\AttributesProperty;
 
 /**
@@ -128,9 +127,9 @@ public function setApiProductStatus(string $consumerKey, string $apiProduct, str
      *
      * @param string $consumerKey
      *
-     * @return \Apigee\Edge\Entity\EntityInterface
+     * @return \Apigee\Edge\Api\Management\Entity\AppCredentialInterface
      */
-    public function delete(string $consumerKey): EntityInterface;
+    public function delete(string $consumerKey): AppCredentialInterface;
 
     /**
      * Remove API product for a consumer key for an developer app.
@@ -140,9 +139,9 @@ public function delete(string $consumerKey): EntityInterface;
      * @param string $consumerKey
      * @param string $apiProduct
      *
-     * @return \Apigee\Edge\Entity\EntityInterface
+     * @return \Apigee\Edge\Api\Management\Entity\AppCredentialInterface
      */
-    public function deleteApiProduct(string $consumerKey, string $apiProduct): EntityInterface;
+    public function deleteApiProduct(string $consumerKey, string $apiProduct): AppCredentialInterface;
 
     /**
      * Get key details for a developer app.
@@ -151,9 +150,9 @@ public function deleteApiProduct(string $consumerKey, string $apiProduct): Entit
      *
      * @param string $consumerKey
      *
-     * @return \Apigee\Edge\Entity\EntityInterface
+     * @return \Apigee\Edge\Api\Management\Entity\AppCredentialInterface
      */
-    public function load(string $consumerKey);
+    public function load(string $consumerKey): AppCredentialInterface;
 
     /**
      * Modify (override) scopes of a customer key.