diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index d3f1c79..670baa8 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -5,7 +5,6 @@ on:
 
 env:
   BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
-  DF_RUN_TOKEN: ${{ secrets.DF_RUN_TOKEN }}
   IMAGE_NAME: google-api-php-client-mock
   AWS_REGION: ${{ vars.AWS_REGION }}
   AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
@@ -19,4 +18,4 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Run unit tests
-        run: docker-compose -f actions-services.yml run --rm google-api-php-client-mock "./run-tests.sh"
\ No newline at end of file
+        run: docker-compose -f actions-services.yml run --rm google-api-php-client-mock "./run-tests.sh"
diff --git a/SilMock/Google/Service/Directory/Resource/Members.php b/SilMock/Google/Service/Directory/Resource/Members.php
index b6c4084..156c8fa 100644
--- a/SilMock/Google/Service/Directory/Resource/Members.php
+++ b/SilMock/Google/Service/Directory/Resource/Members.php
@@ -15,6 +15,21 @@ public function __construct(?string $dbFile = null)
         parent::__construct($dbFile, 'directory', 'members');
     }
 
+    public function delete(string $groupKey, string $memberKey)
+    {
+        $directoryMemberRecords = $this->getRecords();
+        foreach ($directoryMemberRecords as $record) {
+            $decodedRecordData = json_decode($record['data'], true);
+            if (
+                $decodedRecordData['groupKey'] === $groupKey
+                && $decodedRecordData['member']['email'] === $memberKey
+            ) {
+                $recordId = $record['id'];
+                $this->deleteRecordById($recordId);
+            }
+        }
+    }
+
     public function get(string $groupKey, string $memberKey): GoogleDirectory_Member
     {
         $members = $this->listMembers($groupKey);
diff --git a/SilMock/tests/Google/Service/Directory/Resource/MembersTest.php b/SilMock/tests/Google/Service/Directory/Resource/MembersTest.php
index f05fcdf..b14ac41 100644
--- a/SilMock/tests/Google/Service/Directory/Resource/MembersTest.php
+++ b/SilMock/tests/Google/Service/Directory/Resource/MembersTest.php
@@ -81,7 +81,7 @@ public function testListMembersAll()
         try {
             $members = $mockGoogleServiceDirectory->members->listMembers($groupEmailAddress);
         } catch (Exception $exception) {
-            $this->failure($exception);
+            $this->failure($exception, 'listMembersAll');
         }
         self::assertNotEmpty(
             $members->getMembers(),
@@ -102,7 +102,7 @@ public function testListMembersOnlyMember()
                 ]
             );
         } catch (Exception $exception) {
-            $this->failure($exception);
+            $this->failure($exception, 'listMembersOnlyMember');
         }
         self::assertNotEmpty(
             $members->getMembers(),
@@ -123,7 +123,7 @@ public function testListMembersOnlyOwner()
                 ]
             );
         } catch (Exception $exception) {
-            $this->failure($exception);
+            $this->failure($exception, 'listMembersOnlyOwner');
         }
         self::assertEmpty(
             $members->getMembers(),
@@ -131,11 +131,58 @@ public function testListMembersOnlyOwner()
         );
     }
 
-    protected function failure(Exception $exception): void
+    public function testDelete()
+    {
+        $mockGoogleServiceDirectory = new GoogleMock_Directory('anyclient', $this->dataFile);
+        $groupEmailAddress = 'sample_group@groups.example.com';
+        $emailAddress = 'test@example.com';
+        try {
+            $result = $mockGoogleServiceDirectory->members->hasMember(
+                $groupEmailAddress,
+                $emailAddress
+            );
+            $hasMember = $result['isMember'] ?? false;
+        } catch (Exception $exception) {
+            self::fail(
+                $exception->getMessage()
+            );
+        }
+
+        if (! $hasMember) {
+            $member = new GoogleDirectory_Member();
+            $member->setEmail($emailAddress);
+            $member->setRole('MEMBER');
+            $mockGoogleServiceDirectory->members->insert($groupEmailAddress, $member);
+        }
+        $mockGoogleServiceDirectory->members->delete($groupEmailAddress, $emailAddress);
+
+        try {
+            $result = $mockGoogleServiceDirectory->members->hasMember(
+                $groupEmailAddress,
+                'test@example.com'
+            );
+            $hasMember = $result['isMember'] ?? false;
+        } catch (Exception $exception) {
+            self::fail(
+                $exception->getMessage()
+            );
+        }
+        self::assertFalse(
+            $hasMember,
+            sprintf(
+                'Failed to delete %s from group %s',
+                $emailAddress,
+                $groupEmailAddress
+            )
+        );
+    }
+
+    protected function failure(Exception $exception, string $function): void
     {
         self::fail(
             sprintf(
-                'Was expecting the members.insert method to function, but got: %s',
+                'Was expecting the %s method to function, but got: %s',
+                $function,
                 $exception->getMessage()
             )
         );