diff --git a/TODO.md b/TODO.md
index c5a2f60..1198ea7 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,6 +2,8 @@
 
 ## High priority
 
+* update zerocopy version (will likely require minor rewrite)
+
 * udp (uring)
   * run tests under valgrind
     * hangs for integration tests, possibly related to https://bugs.kde.org/show_bug.cgi?id=463859