diff --git a/README.md b/README.md
index 28212e8..62eab6e 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,8 @@
             * [Create a New Team](#create-a-new-team)
             * [Show a Team](#show-a-team)
             * [Edit a Team](#edit-a-team)
+            * [Grant All Package Access](#grant-all-package-access)
+            * [Revoke All Package Access](#revoke-all-package-access)
             * [Delete a Team](#delete-a-team)
             * [Add Member to Team (by User ID)](#add-member-to-team-by-user-id)
             * [Remove Member from Team](#remove-member-from-team)
@@ -126,7 +128,7 @@
          * [Validate incoming webhook payloads](#validate-incoming-webhook-payloads)
       * [License](#license)
 
-<!-- Added by: glaubinix, at: Thu  9 Feb 2023 15:40:34 GMT -->
+<!-- Added by: zanbaldwin, at: Wed May 17 20:53:35 CEST 2023 -->
 
 <!--te-->
 
@@ -244,6 +246,20 @@ $team = $client->teams()->edit($teamId, 'Altered Team Name', $permissions);
 ```
 Edits a team's name and permissions to be applied to team members. Returns the updated team.
 
+#### Grant All Package Access
+```php
+$team = $client->teams()->grantAccessToAllPackages($teamId);
+```
+
+Granting a team access to all packages will give this team access to all current and future organization packages which do not have their permissions synchronized.
+
+#### Revoke All Package Access
+```php
+$team = $client->teams()->revokeAccessToAllPackages($teamId);
+```
+
+Revoking a team's access to all packages will not remove access to packages the team can currently access, but will prevent access to new packages and allow revoking individual package access.
+
 #### Delete a Team
 ```php
 $client->teams()->remove($teamId);
@@ -477,7 +493,7 @@ Returns the vendor bundle.
 $vendorBundleId = 42;
 $vendorBundleData = [
     'name' => 'Bundle name',
-    'minimumAccessibleStability' => 'dev', 
+    'minimumAccessibleStability' => 'dev',
     'versionConstraint' => '^1.0',
     'assignAllPackages' => true,
     'synchronizationIds' => [123], // A list of synchronization ids for which new packages should automatically be added to the bundle.
diff --git a/composer.json b/composer.json
index ab73c4b..987103d 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
         "php-http/discovery": "^1.0",
         "psr/http-client-implementation": "^1.0",
         "php-http/client-common": "^1.9 || ^2.0",
+        "php-http/message-factory": "^1.0",
         "composer-runtime-api": "^2.0"
     },
     "require-dev": {
diff --git a/src/Api/Teams.php b/src/Api/Teams.php
index 815f9ff..f0965f4 100644
--- a/src/Api/Teams.php
+++ b/src/Api/Teams.php
@@ -55,6 +55,16 @@ public function edit($teamId, string $name, TeamPermissions $permissions): array
         return $this->put(sprintf('/teams/%s/', $teamId), $parameters);
     }
 
+    public function grantAccessToAllPackages($teamId): array
+    {
+        return $this->put(sprintf('/teams/%s/all-package-access/grant', $teamId));
+    }
+
+    public function revokeAccessToAllPackages($teamId): array
+    {
+        return $this->put(sprintf('/teams/%s/all-package-access/revoke', $teamId));
+    }
+
     public function remove($teamId): array
     {
         return $this->delete(sprintf('/teams/%s/', $teamId));
diff --git a/tests/Api/TeamsTest.php b/tests/Api/TeamsTest.php
index 2145dc3..5981af7 100644
--- a/tests/Api/TeamsTest.php
+++ b/tests/Api/TeamsTest.php
@@ -193,6 +193,54 @@ public function testEditTeam(): void
         $this->assertSame($expected, $api->edit(123, 'New Team', $permissions));
     }
 
+    public function testTeamGrant(): void
+    {
+        $expected = [
+            'id' => 123,
+            'name' => 'New Team',
+            'permissions' => [
+                'canEditTeamPackages' => true,
+                'canAddPackages' => false,
+                'canCreateSubrepositories' => false,
+                'canViewVendorCustomers' => true,
+                'canManageVendorCustomers' => false,
+            ],
+        ];
+
+        /** @var Teams&MockObject $api */
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('put')
+            ->with($this->equalTo('/teams/123/all-package-access/grant'), $this->equalTo([]))
+            ->willReturn($expected);
+
+        $this->assertSame($expected, $api->grantAccessToAllPackages(123));
+    }
+
+    public function testTeamRevoke(): void
+    {
+        $expected = [
+            'id' => 123,
+            'name' => 'New Team',
+            'permissions' => [
+                'canEditTeamPackages' => true,
+                'canAddPackages' => false,
+                'canCreateSubrepositories' => false,
+                'canViewVendorCustomers' => true,
+                'canManageVendorCustomers' => false,
+            ],
+        ];
+
+        /** @var Teams&MockObject $api */
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('put')
+            ->with($this->equalTo('/teams/123/all-package-access/revoke'), $this->equalTo([]))
+            ->willReturn($expected);
+
+        $this->assertSame($expected, $api->revokeAccessToAllPackages(123));
+    }
+
     public function testDeleteTeam(): void
     {
         $expected = [];