diff --git a/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsOperations.java b/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsOperations.java
index e637f90..e1f6995 100644
--- a/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsOperations.java
+++ b/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsOperations.java
@@ -41,9 +41,8 @@ public interface CredHubPermissionsOperations {
 	 *
 	 * @param name the name of the credential; must not be {@literal null}
 	 * @param permissions a collection of permissions to add
-	 * @return the collection of permissions associated with the credential
 	 */
-	List<CredentialPermission> addPermissions(final CredentialName name, final CredentialPermission... permissions);
+	void addPermissions(final CredentialName name, final CredentialPermission... permissions);
 
 	/**
 	 * Delete a permission associated with a credential.
diff --git a/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsTemplate.java b/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsTemplate.java
index 93221f9..83d4857 100644
--- a/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsTemplate.java
+++ b/spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubPermissionsTemplate.java
@@ -67,21 +67,19 @@ public class CredHubPermissionsTemplate implements CredHubPermissionsOperations
 	}
 
 	@Override
-	public List<CredentialPermission> addPermissions(final CredentialName name,
-													 final CredentialPermission... permissions) {
+	public void addPermissions(final CredentialName name,
+							   final CredentialPermission... permissions) {
 		Assert.notNull(name, "credential name must not be null");
 
 		final CredentialPermissions credentialPermissions = new CredentialPermissions(name, permissions);
 
-		return credHubOperations.doWithRest(new RestOperationsCallback<List<CredentialPermission>>() {
+		credHubOperations.doWithRest(new RestOperationsCallback<Void>() {
 			@Override
-			public List<CredentialPermission> doWithRestOperations(RestOperations restOperations) {
-				ResponseEntity<CredentialPermissions> response =
-						restOperations.exchange(PERMISSIONS_URL_PATH, POST,
-								new HttpEntity<>(credentialPermissions),
-								CredentialPermissions.class);
-
-				return response.getBody().getPermissions();
+			public Void doWithRestOperations(RestOperations restOperations) {
+				restOperations.exchange(PERMISSIONS_URL_PATH, POST,
+						new HttpEntity<>(credentialPermissions),
+						CredentialPermissions.class);
+				return null;
 			}
 		});
 	}
diff --git a/spring-credhub-core/src/test/java/org/springframework/credhub/core/CredHubPermissionsTemplateUnitTests.java b/spring-credhub-core/src/test/java/org/springframework/credhub/core/CredHubPermissionsTemplateUnitTests.java
index 6bb7493..0fc4e20 100644
--- a/spring-credhub-core/src/test/java/org/springframework/credhub/core/CredHubPermissionsTemplateUnitTests.java
+++ b/spring-credhub-core/src/test/java/org/springframework/credhub/core/CredHubPermissionsTemplateUnitTests.java
@@ -98,17 +98,11 @@ public class CredHubPermissionsTemplateUnitTests {
 				.operation(Operation.DELETE)
 				.build();
 
-		CredentialPermissions expectedResponse = new CredentialPermissions(NAME, permission1, permission2);
+		credHubTemplate.addPermissions(NAME, permission1, permission2);
 
-		when(restTemplate.exchange(PERMISSIONS_URL_PATH, POST,
-				new HttpEntity<>(expectedResponse), CredentialPermissions.class))
-				.thenReturn(new ResponseEntity<>(expectedResponse, OK));
-
-		List<CredentialPermission> response = credHubTemplate.addPermissions(NAME, permission1, permission2);
-
-		assertThat(response).isNotNull();
-		assertThat(response).hasSize(expectedResponse.getPermissions().size());
-		assertThat(response).isEqualTo(expectedResponse.getPermissions());
+		verify(restTemplate).exchange(PERMISSIONS_URL_PATH, POST,
+				new HttpEntity<>(new CredentialPermissions(NAME, permission1, permission2)),
+				CredentialPermissions.class);
 	}
 
 	@Test