1 files changed, 4 insertions, 5 deletions
diff --git a/nixpkgs/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix b/nixpkgs/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
index 58be2be6e9d2..cd8ed2a17572 100644
--- a/nixpkgs/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
+++ b/nixpkgs/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
@@ -6,26 +6,25 @@
 , ... } @ args:
 
 let
-  version = "5.10.131-rt72"; # updated by ./update-rt.sh
+  version = "5.10.78-rt55"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
   inherit version;
 
   # modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
-  modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version
-    else lib.replaceStrings ["-"] [".0-"] version;
+  modDirVersion = lib.versions.pad 3 version;
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-    sha256 = "1ki11mvl3dky7iih90znr47vr66dxnlwrqwg2jkk1hqn5i243i4b";
+    sha256 = "03q5lrv8gr9hnm7984pxi9kwsvxrn21qwykj60amisi2wac6r05y";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "0ag000h9m7phvgrqa4jcmd94x0rk8z8bh7qhqqlywbiz2b1b91qa";
+      sha256 = "1wcw682r238qi5jgn5zk9m6j2506p9ypfax13bzhjfyjzz3h98kp";
     };
   }; in [ rt-patch ] ++ kernelPatches;