diff --git a/spec/std/yaml/serialization_spec.cr b/spec/std/yaml/serialization_spec.cr
index 9969fa370d70..b06b2c1ed34a 100644
--- a/spec/std/yaml/serialization_spec.cr
+++ b/spec/std/yaml/serialization_spec.cr
@@ -1,6 +1,5 @@
 require "../spec_helper"
 require "yaml"
-require "json"
 {% unless flag?(:win32) %}
   require "big"
   require "big/yaml"