diff --git a/go.mod b/go.mod
index dd6a8f1..e340f4b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module git.numtide.com/numtide/treefmt
 
-go 1.21
+go 1.22
 
 require (
 	github.com/BurntSushi/toml v1.3.2