diff --git a/pkgs/by-name/rc/rcu/package.nix b/pkgs/by-name/rc/rcu/package.nix
index 2ff56b3e7cc6..e9c9d63dedf7 100644
--- a/pkgs/by-name/rc/rcu/package.nix
+++ b/pkgs/by-name/rc/rcu/package.nix
@@ -23,7 +23,7 @@ let
 in
 python3Packages.buildPythonApplication rec {
   pname = "rcu";
-  version = "4.0.27";
+  version = "4.0.29";
 
   format = "other";
 
@@ -31,7 +31,7 @@ python3Packages.buildPythonApplication rec {
     let
       src-tarball = requireFile {
         name = "rcu-${version}-source.tar.gz";
-        hash = "sha256-3ablHXkvcFu1/VMUMvxbOWZhDGN+G+5MNLl8ZK9oJ5M=";
+        hash = "sha256-qbHjRKH9GOwBduyod8AOm2SYOjGUH1mYSpCTifOehVM=";
         url = "https://www.davisr.me/projects/rcu/";
       };
     in