diff --git a/lib/use_case/base.rb b/lib/use_case/base.rb
index 1ffea6c2..ae254975 100644
--- a/lib/use_case/base.rb
+++ b/lib/use_case/base.rb
@@ -8,12 +8,8 @@ module UseCase
   class Base
     extend Dry::Initializer
 
-    def self.call(...)
-      new(...).call
-    end
+    def self.call(...) = new(...).call
 
-    def call
-      raise NotImplementedError
-    end
+    def call = raise NotImplementedError
   end
 end