diff --git a/go.mod b/go.mod
index 9a04ede0cd1115e2a43608faeaaa40d78c1f2858..f219906ccc4dc54af83c4720aacdb79f8930b4ea 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module git.autistici.org/ai/nospam2
 
-go 1.15
+go 1.20
 
 require (
 	github.com/agnivade/levenshtein v1.1.1