diff --git a/go.mod b/go.mod
index 0bdb34a..56d0f02 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/sv-tools/openapi
 
-go 1.21
+go 1.18
 
 retract (
 	v0.3.0 // due to a mistake, there is no real v0.3.0 release, it was pointed to v0.2.2 tag