diff --git a/go.mod b/go.mod
index c67d6cc855e06e7a0e35c2bbd5b4de8290aaa220..bbbdf66c2754bd8ec9ee1decd3eb90be947fcce4 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module git.autistici.org/ai3/tools/webdav-server-go
 
-go 1.15
+go 1.20
 
 require golang.org/x/net v0.4.0