diff --git a/src/Illuminate/Validation/ValidatesWhenResolvedTrait.php b/src/Illuminate/Validation/ValidatesWhenResolvedTrait.php
index 596585551d22..33abc382ea42 100644
--- a/src/Illuminate/Validation/ValidatesWhenResolvedTrait.php
+++ b/src/Illuminate/Validation/ValidatesWhenResolvedTrait.php
@@ -33,6 +33,12 @@ public function validateResolved()
         }
 
         $this->passedValidation();
+
+        // Sync the validator data with the current request data after passedValidation()
+        // in case the request data was modified (e.g., via replace() or merge())
+        if (method_exists($this, 'validationData')) {
+            $instance->setData($this->validationData());
+        }
     }
 
     /**
diff --git a/tests/Foundation/FoundationFormRequestTest.php b/tests/Foundation/FoundationFormRequestTest.php
index 8827b8f92f66..9b5c5505b2c5 100644
--- a/tests/Foundation/FoundationFormRequestTest.php
+++ b/tests/Foundation/FoundationFormRequestTest.php
@@ -129,6 +129,15 @@ public function testAfterValidationRunsAfterValidation()
         $this->assertEquals(['name' => 'Adam'], $request->all());
     }
 
+    public function testPassedValidationDataIsReflectedInValidatedMethod()
+    {
+        $request = $this->createRequest([], FoundationTestFormRequestHooks::class);
+
+        $request->validateResolved();
+
+        $this->assertEquals(['name' => 'Adam'], $request->validated());
+    }
+
     public function testValidatedMethodReturnsOnlyRequestedValidatedData()
     {
         $request = $this->createRequest(['name' => 'specified', 'with' => 'extras']);