diff --git a/pkgs/by-name/oc/ocf-resource-agents/package.nix b/pkgs/by-name/oc/ocf-resource-agents/package.nix
index cd14babe8bf7..0807b266aafb 100644
--- a/pkgs/by-name/oc/ocf-resource-agents/package.nix
+++ b/pkgs/by-name/oc/ocf-resource-agents/package.nix
@@ -24,15 +24,15 @@ let
     forOCF = true;
   };
 
-  resource-agentsForOCF = stdenv.mkDerivation rec {
+  resource-agentsForOCF = stdenv.mkDerivation (finalAttrs: {
     pname = "resource-agents";
     version = "4.10.0";
 
     src = fetchFromGitHub {
       owner = "ClusterLabs";
       repo = "resource-agents";
-      rev = "v${version}";
-      sha256 = "0haryi3yrszdfpqnkfnppxj1yiy6ipah6m80snvayc7v0ss0wnir";
+      tag = "v${finalAttrs.version}";
+      hash = "sha256-OVoOtAb7MK+21QBVA9WNxkcfZL/Xumnxde3r7Ef0WUE=";
     };
 
     patches = [
@@ -75,7 +75,7 @@ let
         astro
       ];
     };
-  };
+  });
 
 in