diff --git a/go.mod b/go.mod
index 4d45d5e..06a7113 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/strongo/csv
 
 go 1.26.0
 
-toolchain go1.27.0
+toolchain go1.27.1