diff --git a/pkgs/by-name/rc/rcu/package.nix b/pkgs/by-name/rc/rcu/package.nix
index 2f22ce09fc63..6ce7d03ac7b9 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 = "4.0.25";
+  version = "4.0.26";
 
   format = "other";
 
@@ -31,7 +31,7 @@ python3Packages.buildPythonApplication rec {
     let
       src-tarball = requireFile {
         name = "rcu-${version}-source.tar.gz";
-        hash = "sha256-8xcYAQxUmY8beUrRYmOn5UeWibr0EUZLOG4pFfeeSdw=";
+        hash = "sha256-yY3OFZVHxhVurfjSEeR+UUNHQdpc08jhgaDEvMWRsLA=";
         url = "https://www.davisr.me/projects/rcu/";
       };
     in