diff --git a/go.mod b/go.mod
index b5ff2ac..1e1c7b7 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,10 @@
 module git.froth.zone/sam/go2werc
 
-go 1.19
+go 1.22.0
+
+toolchain go1.23.4
 
 require (
 	github.com/russross/blackfriday/v2 v2.1.0
-	golang.org/x/tools v0.19.0
+	golang.org/x/tools v0.28.0
 )
diff --git a/go.sum b/go.sum
index 0f05d44..88fefdf 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
-golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
+golang.org/x/tools v0.28.0 h1:WuB6qZ4RPCQo5aP3WdKZS7i595EdWqWR8vqJTlwTVK8=
+golang.org/x/tools v0.28.0/go.mod h1:dcIOrVd3mfQKTgrDVQHqCPMWy6lnhfhtX3hLXYVLfRw=