diff --git a/go.mod b/go.mod
index 0028335..114cd26 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,8 @@
 module github.com/onmetal/tftp/v3
 
 go 1.21
+toolchain go1.23.7
 
-require golang.org/x/net v0.35.0
+require golang.org/x/net v0.36.0
 
 require golang.org/x/sys v0.30.0 // indirect
diff --git a/go.sum b/go.sum
index 3f5e6ff..5c28fde 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/net v0.36.0 h1:vWF2fRbw4qslQsQzgFqZff+BItCvGFQqKzKIzx1rmoA=
+golang.org/x/net v0.36.0/go.mod h1:bFmbeoIPfrw4sMHNhb4J9f6+tPziuGjq7Jk/38fxi1I=
 golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
 golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=