diff --git a/go.mod b/go.mod
index 0028335..2d5ff55 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,8 @@
 module github.com/onmetal/tftp/v3
 
 go 1.21
+toolchain go1.24.1
 
-require golang.org/x/net v0.35.0
+require golang.org/x/net v0.40.0
 
-require golang.org/x/sys v0.30.0 // indirect
+require golang.org/x/sys v0.33.0 // indirect
diff --git a/go.sum b/go.sum
index 3f5e6ff..5b3bc98 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
-golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
-golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
+golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=