diff --git a/src/Utils/BuildClientSchema.php b/src/Utils/BuildClientSchema.php
index 33276c04b..13d157868 100644
--- a/src/Utils/BuildClientSchema.php
+++ b/src/Utils/BuildClientSchema.php
@@ -522,6 +522,7 @@ public function buildInputValue(array $inputValueIntrospection): array
 
         $inputValue = [
             'description' => $inputValueIntrospection['description'],
+            'deprecationReason' => $inputValueIntrospection['deprecationReason'] ?? null,
             'type' => $type,
         ];
 
diff --git a/tests/Utils/BuildClientSchemaTest.php b/tests/Utils/BuildClientSchemaTest.php
index 8d7e17599..677062481 100644
--- a/tests/Utils/BuildClientSchemaTest.php
+++ b/tests/Utils/BuildClientSchemaTest.php
@@ -521,13 +521,19 @@ enum Color {
             """So sickening"""
             MAUVE @deprecated(reason: "No longer in fashion")
           }
-    
+
+          input ColorInput {
+            oldColor: String @deprecated(reason: "Use color")
+            color: String
+          }
+     
           type Query {
             """This is a shiny string field"""
             shinyString: String
-    
+     
             """This is a deprecated string field"""
             deprecatedString: String @deprecated(reason: "Use shinyString")
+            paint(oldColor: String @deprecated(reason: "Use color"), color: String, input: ColorInput): Color
             color: Color
           }
         ');