diff --git a/fpconv/fuzz_test.go b/fpconv/fuzz_test.go
index a5ab407..6fb0d36 100644
--- a/fpconv/fuzz_test.go
+++ b/fpconv/fuzz_test.go
@@ -1,5 +1,5 @@
-//go:build go1.16
-// +build go1.16
+//go:build go1.18
+// +build go1.18
 
 package fpconv