diff --git a/graphene_sqlalchemy/converter.py b/graphene_sqlalchemy/converter.py
index f4b805e2..b632c2df 100644
--- a/graphene_sqlalchemy/converter.py
+++ b/graphene_sqlalchemy/converter.py
@@ -249,5 +249,11 @@ def convert_json_to_string(type, column, registry=None):
 
 
 @convert_sqlalchemy_type.register(JSONType)
+@convert_sqlalchemy_type.register(types.JSON)
 def convert_json_type_to_string(type, column, registry=None):
     return JSONString
+
+
+@convert_sqlalchemy_type.register(types.Variant)
+def convert_variant_to_impl_type(type, column, registry=None):
+    return convert_sqlalchemy_type(type.impl, column, registry=registry)
diff --git a/graphene_sqlalchemy/tests/test_converter.py b/graphene_sqlalchemy/tests/test_converter.py
index f0fc1802..617c3750 100644
--- a/graphene_sqlalchemy/tests/test_converter.py
+++ b/graphene_sqlalchemy/tests/test_converter.py
@@ -188,6 +188,7 @@ def test_should_scalar_list_convert_list():
 
 def test_should_jsontype_convert_jsonstring():
     assert get_field(JSONType()).type == JSONString
+    assert get_field(types.JSON()).type == JSONString
 
 
 def test_should_manytomany_convert_connectionorlist():
@@ -286,6 +287,14 @@ class Meta:
     assert graphene_type.type == A
 
 
+def test_should_variant_int_convert_int():
+    assert get_field(types.Variant(types.Integer(), {})).type == graphene.Int
+
+
+def test_should_variant_string_convert_string():
+    assert get_field(types.Variant(types.String(), {})).type == graphene.String
+
+
 def test_should_postgresql_uuid_convert():
     assert get_field(postgresql.UUID()).type == graphene.String