diff --git a/go.mod b/go.mod
index 9237a7a2..27502e60 100644
--- a/go.mod
+++ b/go.mod
@@ -13,7 +13,7 @@ require (
 	github.com/sapcc/go-bits v0.0.0-20260226170120-c20f89b66c3c
 	github.com/ulikunitz/xz v0.5.15
 	golang.org/x/crypto v0.48.0
-	golang.org/x/net v0.50.0
+	golang.org/x/net v0.51.0
 	gopkg.in/yaml.v2 v2.4.0
 	pault.ag/go/debian v0.19.0
 )
diff --git a/go.sum b/go.sum
index b90b0054..626703f1 100644
--- a/go.sum
+++ b/go.sum
@@ -39,8 +39,8 @@ github.com/ulikunitz/xz v0.5.15 h1:9DNdB5s+SgV3bQ2ApL10xRc35ck0DuIX/isZvIk+ubY=
 github.com/ulikunitz/xz v0.5.15/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
 golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
-golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
-golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
+golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo=
+golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/vendor/golang.org/x/net/html/iter.go b/vendor/golang.org/x/net/html/iter.go
index 54be8fd3..349ef73e 100644
--- a/vendor/golang.org/x/net/html/iter.go
+++ b/vendor/golang.org/x/net/html/iter.go
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build go1.23
-
 package html
 
 import "iter"
diff --git a/vendor/modules.txt b/vendor/modules.txt
index afd7de4a..fe26d8d5 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -78,8 +78,8 @@ golang.org/x/crypto/openpgp/elgamal
 golang.org/x/crypto/openpgp/errors
 golang.org/x/crypto/openpgp/packet
 golang.org/x/crypto/openpgp/s2k
-# golang.org/x/net v0.50.0
-## explicit; go 1.24.0
+# golang.org/x/net v0.51.0
+## explicit; go 1.25.0
 golang.org/x/net/html
 golang.org/x/net/html/atom
 # gopkg.in/yaml.v2 v2.4.0