diff --git a/pkgs/by-name/rc/rcu/package.nix b/pkgs/by-name/rc/rcu/package.nix
index 08707fb7ba56..4ec0d3ddc11d 100644
--- a/pkgs/by-name/rc/rcu/package.nix
+++ b/pkgs/by-name/rc/rcu/package.nix
@@ -24,7 +24,7 @@ let
 in
 python3Packages.buildPythonApplication rec {
   pname = "rcu";
-  version = "4.0.30";
+  version = "4.0.31";
 
   format = "other";
 
@@ -32,7 +32,7 @@ python3Packages.buildPythonApplication rec {
     let
       src-tarball = requireFile {
         name = "rcu-${version}-source.tar.gz";
-        hash = "sha256-SJnDTW6oQUd+UjWgJz74Po+ibk3JfotFU7CIt4J/nDA=";
+        hash = "sha256-gOf6CaLqoGqJuTcyARdLnKiovPDFRtsABJgEEF7fx+A=";
         url = "https://www.davisr.me/projects/rcu/";
       };
     in