diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsForInputTypes/expected/types/PersonFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsForInputTypes/expected/types/PersonFilter.kt
index bdf96ca0d..eaee7a583 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsForInputTypes/expected/types/PersonFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsForInputTypes/expected/types/PersonFilter.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.constantsForInputTypes.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class PersonFilter(
+public class PersonFilter @JsonCreator constructor(
+  @JsonProperty("email")
   public val email: String? = default<PersonFilter, String?>("email"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("email" to email)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsWithExtendedInputTypes/expected/types/PersonFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsWithExtendedInputTypes/expected/types/PersonFilter.kt
index ae0d4063a..11123d09f 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsWithExtendedInputTypes/expected/types/PersonFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/constantsWithExtendedInputTypes/expected/types/PersonFilter.kt
@@ -1,5 +1,7 @@
 package com.netflix.graphql.dgs.codegen.cases.constantsWithExtendedInputTypes.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Int
@@ -7,8 +9,10 @@ import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class PersonFilter(
+public class PersonFilter @JsonCreator constructor(
+  @JsonProperty("email")
   public val email: String? = default<PersonFilter, String?>("email"),
+  @JsonProperty("birthYear")
   public val birthYear: Int? = default<PersonFilter, Int?>("birthYear"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("email" to email, "birthYear" to
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassDocs/expected/types/MovieFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassDocs/expected/types/MovieFilter.kt
index 345ba511c..885af67ea 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassDocs/expected/types/MovieFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassDocs/expected/types/MovieFilter.kt
@@ -1,5 +1,7 @@
 package com.netflix.graphql.dgs.codegen.cases.dataClassDocs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
@@ -11,7 +13,8 @@ import kotlin.collections.List
  *
  * It takes a title and such.
  */
-public class MovieFilter(
+public class MovieFilter @JsonCreator constructor(
+  @JsonProperty("titleFilter")
   public val titleFilter: String? = default<MovieFilter, String?>("titleFilter"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("titleFilter" to titleFilter)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassFieldDocs/expected/types/MovieFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassFieldDocs/expected/types/MovieFilter.kt
index 4a4e7f588..e2c26487c 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassFieldDocs/expected/types/MovieFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/dataClassFieldDocs/expected/types/MovieFilter.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.dataClassFieldDocs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class MovieFilter(
+public class MovieFilter @JsonCreator constructor(
+  @JsonProperty("titleFilter")
   public val titleFilter: String? = default<MovieFilter, String?>("titleFilter"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("titleFilter" to titleFilter)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/input/expected/types/MovieFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/input/expected/types/MovieFilter.kt
index 16fd73753..2c9535832 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/input/expected/types/MovieFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/input/expected/types/MovieFilter.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.input.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class MovieFilter(
+public class MovieFilter @JsonCreator constructor(
+  @JsonProperty("genre")
   public val genre: String? = default<MovieFilter, String?>("genre"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("genre" to genre)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultEnumValueForArray/expected/types/SomeType.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultEnumValueForArray/expected/types/SomeType.kt
index ab733bf04..bf15d9394 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultEnumValueForArray/expected/types/SomeType.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultEnumValueForArray/expected/types/SomeType.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithDefaultEnumValueForArray.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class SomeType(
+public class SomeType @JsonCreator constructor(
+  @JsonProperty("colors")
   public val colors: List<Color?>? = default<SomeType, List<Color?>?>("colors"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("colors" to colors)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultIntValueForArray/expected/types/SomeType.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultIntValueForArray/expected/types/SomeType.kt
index dea0b24ec..915ae4480 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultIntValueForArray/expected/types/SomeType.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultIntValueForArray/expected/types/SomeType.kt
@@ -1,5 +1,7 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithDefaultIntValueForArray.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Int
@@ -7,7 +9,8 @@ import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class SomeType(
+public class SomeType @JsonCreator constructor(
+  @JsonProperty("numbers")
   public val numbers: List<Int?>? = default<SomeType, List<Int?>?>("numbers"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("numbers" to numbers)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultStringValueForArray/expected/types/SomeType.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultStringValueForArray/expected/types/SomeType.kt
index 104f8b6f0..7ec76cddb 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultStringValueForArray/expected/types/SomeType.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultStringValueForArray/expected/types/SomeType.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithDefaultStringValueForArray.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class SomeType(
+public class SomeType @JsonCreator constructor(
+  @JsonProperty("names")
   public val names: List<String?>? = default<SomeType, List<String?>?>("names"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("names" to names)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForArray/expected/types/SomeType.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForArray/expected/types/SomeType.kt
index ac63e3bdd..f6f970b08 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForArray/expected/types/SomeType.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForArray/expected/types/SomeType.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithDefaultValueForArray.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class SomeType(
+public class SomeType @JsonCreator constructor(
+  @JsonProperty("names")
   public val names: List<String?>? = default<SomeType, List<String?>?>("names"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("names" to names)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForEnum/expected/types/ColorFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForEnum/expected/types/ColorFilter.kt
index db06d5b00..0bd181b68 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForEnum/expected/types/ColorFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithDefaultValueForEnum/expected/types/ColorFilter.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithDefaultValueForEnum.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class ColorFilter(
+public class ColorFilter @JsonCreator constructor(
+  @JsonProperty("color")
   public val color: Color? = default<ColorFilter, Color?>("color"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("color" to color)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithExtendedType/expected/types/MovieFilter.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithExtendedType/expected/types/MovieFilter.kt
index 7f529f505..43c8258f5 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithExtendedType/expected/types/MovieFilter.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithExtendedType/expected/types/MovieFilter.kt
@@ -1,5 +1,7 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithExtendedType.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Int
@@ -7,8 +9,10 @@ import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class MovieFilter(
+public class MovieFilter @JsonCreator constructor(
+  @JsonProperty("genre")
   public val genre: String? = default<MovieFilter, String?>("genre"),
+  @JsonProperty("releaseYear")
   public val releaseYear: Int? = default<MovieFilter, Int?>("releaseYear"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("genre" to genre, "releaseYear" to
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithReservedWord/expected/types/SampleInput.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithReservedWord/expected/types/SampleInput.kt
index 97986e155..e54de8863 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithReservedWord/expected/types/SampleInput.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/inputWithReservedWord/expected/types/SampleInput.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.inputWithReservedWord.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class SampleInput(
+public class SampleInput @JsonCreator constructor(
+  @JsonProperty("return")
   public val `return`: String,
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("return" to `return`)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I1.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I1.kt
index 3d4d860c0..dd26e7d95 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I1.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I1.kt
@@ -1,13 +1,17 @@
 package com.netflix.graphql.dgs.codegen.cases.projectionWithNestedInputs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class I1(
+public class I1 @JsonCreator constructor(
+  @JsonProperty("arg1")
   public val arg1: I1? = default<I1, I1?>("arg1"),
+  @JsonProperty("arg2")
   public val arg2: I2? = default<I1, I2?>("arg2"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("arg1" to arg1, "arg2" to arg2)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I2.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I2.kt
index 8de341675..b1c26c2bd 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I2.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithNestedInputs/expected/types/I2.kt
@@ -1,13 +1,17 @@
 package com.netflix.graphql.dgs.codegen.cases.projectionWithNestedInputs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class I2(
+public class I2 @JsonCreator constructor(
+  @JsonProperty("arg1")
   public val arg1: String? = default<I2, String?>("arg1"),
+  @JsonProperty("arg2")
   public val arg2: String? = default<I2, String?>("arg2"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("arg1" to arg1, "arg2" to arg2)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithPrimitiveAndArgs/expected/types/I.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithPrimitiveAndArgs/expected/types/I.kt
index 6304f9111..3b06d6a31 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithPrimitiveAndArgs/expected/types/I.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithPrimitiveAndArgs/expected/types/I.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.projectionWithPrimitiveAndArgs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class I(
+public class I @JsonCreator constructor(
+  @JsonProperty("arg")
   public val arg: String? = default<I, String?>("arg"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("arg" to arg)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/expected/types/I.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/expected/types/I.kt
index fd1a95b77..b8acb95ca 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/expected/types/I.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/expected/types/I.kt
@@ -1,12 +1,15 @@
 package com.netflix.graphql.dgs.codegen.cases.projectionWithTypeAndArgs.expected.types
 
+import com.fasterxml.jackson.`annotation`.JsonCreator
+import com.fasterxml.jackson.`annotation`.JsonProperty
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import kotlin.Any
 import kotlin.Pair
 import kotlin.String
 import kotlin.collections.List
 
-public class I(
+public class I @JsonCreator constructor(
+  @JsonProperty("arg")
   public val arg: String? = default<I, String?>("arg"),
 ) : GraphQLInput() {
   override fun fields(): List<Pair<String, Any?>> = listOf("arg" to arg)
diff --git a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/test/QueryTest.kt b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/test/QueryTest.kt
index b60ec316b..e9c4f27b1 100644
--- a/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/test/QueryTest.kt
+++ b/graphql-dgs-codegen-core/src/integTest/kotlin/com/netflix/graphql/dgs/codegen/cases/projectionWithTypeAndArgs/test/QueryTest.kt
@@ -78,10 +78,10 @@ class QueryTest {
     @Test
     fun testQueryWithAlias() {
         val query = DgsClient.buildQuery {
-            person(_alias= "person1", a2 = "person1") {
+            person(_alias = "person1", a2 = "person1") {
                 firstname
             }
-            person(_alias= "person2", a2 = "person2") {
+            person(_alias = "person2", a2 = "person2") {
                 firstname
             }
         }
diff --git a/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/kotlin2/GenerateKotlin2InputTypes.kt b/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/kotlin2/GenerateKotlin2InputTypes.kt
index b7fbc7993..d76b9247d 100644
--- a/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/kotlin2/GenerateKotlin2InputTypes.kt
+++ b/graphql-dgs-codegen-core/src/main/kotlin/com/netflix/graphql/dgs/codegen/generators/kotlin2/GenerateKotlin2InputTypes.kt
@@ -18,6 +18,8 @@
 
 package com.netflix.graphql.dgs.codegen.generators.kotlin2
 
+import com.fasterxml.jackson.annotation.JsonCreator
+import com.fasterxml.jackson.annotation.JsonProperty
 import com.netflix.graphql.dgs.codegen.CodeGenConfig
 import com.netflix.graphql.dgs.codegen.GraphQLInput
 import com.netflix.graphql.dgs.codegen.generators.kotlin.ReservedKeywordFilter
@@ -26,6 +28,7 @@ import com.netflix.graphql.dgs.codegen.generators.kotlin.sanitizeKdoc
 import com.netflix.graphql.dgs.codegen.generators.shared.SchemaExtensionsUtils.findInputExtensions
 import com.netflix.graphql.dgs.codegen.generators.shared.excludeSchemaTypeExtension
 import com.netflix.graphql.dgs.codegen.shouldSkip
+import com.squareup.kotlinpoet.AnnotationSpec
 import com.squareup.kotlinpoet.ClassName
 import com.squareup.kotlinpoet.CodeBlock
 import com.squareup.kotlinpoet.FileSpec
@@ -82,13 +85,14 @@ fun generateKotlin2InputTypes(
                 // add a constructor with a parameter for every field
                 .primaryConstructor(
                     FunSpec.constructorBuilder()
+                        .addAnnotation(JsonCreator::class)
                         .addParameters(
                             fields.map { field ->
                                 val type = type(field)
                                 ParameterSpec.builder(
                                     name = field.name,
                                     type = type
-                                )
+                                ).addAnnotation(AnnotationSpec.builder(JsonProperty::class).addMember("%S", field.name).build())
                                     .apply {
                                         if (type.isNullable) {
                                             defaultValue("default<%T, %T>(%S)", typeName, type, field.name)