diff --git a/go.mod b/go.mod
index 8e52a9ab3..627afb239 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module tailscale.com
 
-go 1.23.1
+go 1.23.5
 
 require (
 	filippo.io/mkcert v1.4.4
diff --git a/gokrazy/go.mod b/gokrazy/go.mod
index a9ba5a07d..ea7cddb14 100644
--- a/gokrazy/go.mod
+++ b/gokrazy/go.mod
@@ -1,6 +1,6 @@
 module tailscale.com/gokrazy
 
-go 1.23.1
+go 1.23.5
 
 require github.com/gokrazy/tools v0.0.0-20240730192548-9f81add3a91e
 
diff --git a/gokrazy/natlabapp.arm64/builddir/github.com/gokrazy/kernel.arm64/go.mod b/gokrazy/natlabapp.arm64/builddir/github.com/gokrazy/kernel.arm64/go.mod
index d4708bf46..182e9df06 100644
--- a/gokrazy/natlabapp.arm64/builddir/github.com/gokrazy/kernel.arm64/go.mod
+++ b/gokrazy/natlabapp.arm64/builddir/github.com/gokrazy/kernel.arm64/go.mod
@@ -1,5 +1,5 @@
 module gokrazy/build/natlabapp.arm64
 
-go 1.23.1
+go 1.23.5
 
 require github.com/gokrazy/kernel.arm64 v0.0.0-20240830035047-cdba87a9eb0e // indirect
diff --git a/gokrazy/natlabapp.arm64/builddir/tailscale.com/go.mod b/gokrazy/natlabapp.arm64/builddir/tailscale.com/go.mod
index da21a1439..012419b8c 100644
--- a/gokrazy/natlabapp.arm64/builddir/tailscale.com/go.mod
+++ b/gokrazy/natlabapp.arm64/builddir/tailscale.com/go.mod
@@ -1,6 +1,6 @@
 module gokrazy/build/tsapp
 
-go 1.23.1
+go 1.23.5
 
 replace tailscale.com => ../../../..
 
diff --git a/gokrazy/natlabapp/builddir/tailscale.com/go.mod b/gokrazy/natlabapp/builddir/tailscale.com/go.mod
index da21a1439..012419b8c 100644
--- a/gokrazy/natlabapp/builddir/tailscale.com/go.mod
+++ b/gokrazy/natlabapp/builddir/tailscale.com/go.mod
@@ -1,6 +1,6 @@
 module gokrazy/build/tsapp
 
-go 1.23.1
+go 1.23.5
 
 replace tailscale.com => ../../../..
 
diff --git a/gokrazy/tsapp/builddir/tailscale.com/go.mod b/gokrazy/tsapp/builddir/tailscale.com/go.mod
index da21a1439..012419b8c 100644
--- a/gokrazy/tsapp/builddir/tailscale.com/go.mod
+++ b/gokrazy/tsapp/builddir/tailscale.com/go.mod
@@ -1,6 +1,6 @@
 module gokrazy/build/tsapp
 
-go 1.23.1
+go 1.23.5
 
 replace tailscale.com => ../../../..