diff --git a/go.mod b/go.mod
index b54ddb1..24e6d27 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/gdatasoftwareag/tftp/v2
 
-go 1.19
+go 1.21
 
 require (
 	github.com/cyphar/filepath-securejoin v0.2.4