diff --git a/src/graphql/__init__.py b/src/graphql/__init__.py
index 4f858a68..a55a30be 100644
--- a/src/graphql/__init__.py
+++ b/src/graphql/__init__.py
@@ -342,6 +342,7 @@
     GraphQLFieldResolver,
     GraphQLInputField,
     GraphQLInputFieldMap,
+    GraphQLInputFieldOutType,
     GraphQLScalarSerializer,
     GraphQLScalarValueParser,
     GraphQLScalarLiteralParser,
@@ -562,6 +563,7 @@
     "GraphQLFieldResolver",
     "GraphQLInputField",
     "GraphQLInputFieldMap",
+    "GraphQLInputFieldOutType",
     "GraphQLScalarSerializer",
     "GraphQLScalarValueParser",
     "GraphQLScalarLiteralParser",
diff --git a/src/graphql/type/__init__.py b/src/graphql/type/__init__.py
index 569e4f52..f6af8b7e 100644
--- a/src/graphql/type/__init__.py
+++ b/src/graphql/type/__init__.py
@@ -98,6 +98,7 @@
     GraphQLFieldMap,
     GraphQLInputField,
     GraphQLInputFieldMap,
+    GraphQLInputFieldOutType,
     GraphQLScalarSerializer,
     GraphQLScalarValueParser,
     GraphQLScalarLiteralParser,
@@ -252,6 +253,7 @@
     "GraphQLFieldMap",
     "GraphQLInputField",
     "GraphQLInputFieldMap",
+    "GraphQLInputFieldOutType",
     "GraphQLScalarSerializer",
     "GraphQLScalarValueParser",
     "GraphQLScalarLiteralParser",
diff --git a/src/graphql/type/definition.py b/src/graphql/type/definition.py
index 8d1d55cd..e1a0a770 100644
--- a/src/graphql/type/definition.py
+++ b/src/graphql/type/definition.py
@@ -129,6 +129,7 @@
     "GraphQLInputField",
     "GraphQLInputFieldKwargs",
     "GraphQLInputFieldMap",
+    "GraphQLInputFieldOutType",
     "GraphQLInputObjectType",
     "GraphQLInputObjectTypeKwargs",
     "GraphQLInputType",