diff --git a/graphene_federation/main.py b/graphene_federation/main.py
index 247381d..c723983 100644
--- a/graphene_federation/main.py
+++ b/graphene_federation/main.py
@@ -23,13 +23,16 @@ def _get_query(schema: Schema, query_cls: Optional[ObjectType] = None) -> Object
 def build_schema(
     query: Optional[ObjectType] = None,
     mutation: Optional[ObjectType] = None,
-    enable_federation_2=False,
+    federation_version: Optional[float] = None,
+    enable_federation_2: bool = False,
     schema: Optional[Schema] = None,
     **kwargs
 ) -> Schema:
     schema = schema or Schema(query=query, mutation=mutation, **kwargs)
     schema.auto_camelcase = kwargs.get("auto_camelcase", True)
-    schema.federation_version = 2 if enable_federation_2 else 1
+    schema.federation_version = (
+        (federation_version or 2) if (enable_federation_2 or federation_version) else 1
+    )
     federation_query = _get_query(schema, schema.query if schema else query)
     kwargs = schema.__dict__
     kwargs.pop("query")
diff --git a/graphene_federation/service.py b/graphene_federation/service.py
index ca3aab7..edbc8cf 100644
--- a/graphene_federation/service.py
+++ b/graphene_federation/service.py
@@ -122,7 +122,7 @@ def get_sdl(schema: Schema) -> str:
 
     _schema = ""
 
-    if schema.federation_version == 2:
+    if schema.federation_version >= 2:
         shareable_types = get_shareable_types(schema)
         inaccessible_types = get_inaccessible_types(schema)
         shareable_fields = get_shareable_fields(schema)
@@ -161,7 +161,7 @@ def get_sdl(schema: Schema) -> str:
         | set(provides_fields.values())
     )
 
-    if schema.federation_version == 2:
+    if schema.federation_version >= 2:
         entities_ = (
             entities_
             | set(shareable_types.values())
@@ -187,7 +187,7 @@ def get_sdl(schema: Schema) -> str:
 
         # resolvable argument of @key directive is true by default. If false, we add 'resolvable: false' to sdl.
         if (
-            schema.federation_version == 2
+            schema.federation_version >= 2
             and hasattr(entity, "_resolvable")
             and not entity._resolvable
         ):
@@ -204,7 +204,7 @@ def get_sdl(schema: Schema) -> str:
         pattern = re.compile(type_def_re)
         string_schema = pattern.sub(repl_str, string_schema)
 
-    if schema.federation_version == 2:
+    if schema.federation_version >= 2:
         for type_name, type in shareable_types.items():
             # noinspection PyProtectedMember
             if isinstance(type._meta, UnionOptions):