diff --git a/.bin/cvs-update-all b/.bin/cvs-update-all
new file mode 100755
index 0000000..dee6bb1
--- /dev/null
+++ b/.bin/cvs-update-all
@@ -0,0 +1,9 @@
+!#/bin/sh -ex
+
+CVSROOT="sdk@cvs.openbsd.org:/cvs"
+export CVSROOT
+
+cd /usr/src      && doas -u sdk cvs -d $CVSROOT -z1 -q up -Pd -A
+cd /usr/xenocara && doas -u sdk cvs -d $CVSROOT -z1 -q up -Pd -A
+cd /usr/ports    && doas -u sdk cvs -d $CVSROOT -z1 -q up -Pd -A
+cd /usr/www      && doas -u sdk cvs -d $CVSROOT -z1 -q up -Pd -A