diff --git a/app/code/Magento/Signifyd/Test/Unit/Controller/Webhooks/HandlerTest.php b/app/code/Magento/Signifyd/Test/Unit/Controller/Webhooks/HandlerTest.php
index 1a8cfdc703247..8b98be338b973 100644
--- a/app/code/Magento/Signifyd/Test/Unit/Controller/Webhooks/HandlerTest.php
+++ b/app/code/Magento/Signifyd/Test/Unit/Controller/Webhooks/HandlerTest.php
@@ -140,7 +140,7 @@ protected function setUp()
     }
 
     /**
-     * Successfull case
+     * Successful case
      */
     public function testExecuteSuccessfully()
     {
diff --git a/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php b/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
index 0ca9f6846f77d..98fcdc626a971 100644
--- a/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
+++ b/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
@@ -315,7 +315,7 @@ public function testAsymmetricRollBackSuccess()
     }
 
     /**
-     * Test successfull nested transaction
+     * Test successful nested transaction
      */
     public function testNestedTransactionCommitSuccess()
     {
@@ -337,7 +337,7 @@ public function testNestedTransactionCommitSuccess()
     }
 
     /**
-     * Test successfull nested transaction
+     * Test successful nested transaction
      */
     public function testNestedTransactionRollBackSuccess()
     {
@@ -359,7 +359,7 @@ public function testNestedTransactionRollBackSuccess()
     }
 
     /**
-     * Test successfull nested transaction
+     * Test successful nested transaction
      */
     public function testNestedTransactionLastRollBack()
     {