diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.11.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.11.nix
deleted file mode 100644
index 5d1b14f1d0f0..000000000000
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.11.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{ lib, buildLinux, fetchurl
-, kernelPatches ? [ ]
-, structuredExtraConfig ? {}
-, extraMeta ? {}
-, argsOverride ? {}
-, ... } @ args:
-
-let
-  version = "5.11.4-rt11"; # 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;
-
-  src = fetchurl {
-    url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-    sha256 = "1i8dfw83ndaylwji7lazfckk113plvnz7kh1yppbfg35r6przrc8";
-  };
-
-  kernelPatches = let rt-patch = {
-    name = "rt";
-    patch = fetchurl {
-      url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "1az6cn9jj3bnjgwzzrjy1adnrnn06p2vzsnc1iib4xhs0sfr27hc";
-    };
-  }; in [ rt-patch ] ++ kernelPatches;
-
-  structuredExtraConfig = with lib.kernel; {
-    PREEMPT_RT = yes;
-    # Fix error: unused option: PREEMPT_RT.
-    EXPERT = yes; # PREEMPT_RT depends on it (in kernel/Kconfig.preempt)
-    # Fix error: option not set correctly: PREEMPT_VOLUNTARY (wanted 'y', got 'n').
-    PREEMPT_VOLUNTARY = lib.mkForce no; # PREEMPT_RT deselects it.
-    # Fix error: unused option: RT_GROUP_SCHED.
-    RT_GROUP_SCHED = lib.mkForce (option no); # Removed by sched-disable-rt-group-sched-on-rt.patch.
-  } // structuredExtraConfig;
-
-  extraMeta = extraMeta // {
-    inherit branch;
-  };
-} // argsOverride)
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 62efca5b8d00..8dc857e4a985 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -461,7 +461,6 @@ mapAliases ({
   linuxPackages_rpi0 = linuxKernel.packages.linux_rpi1;
   linuxPackages_rt_5_4 = linuxKernel.packages.linux_rt_5_4;
   linuxPackages_rt_5_10 = linuxKernel.packages.linux_rt_5_10;
-  linuxPackages_rt_5_11 = linuxKernel.packages.linux_rt_5_11;
   linuxPackages_rpi1 = linuxKernel.packages.linux_rpi1;
   linuxPackages_rpi2 = linuxKernel.packages.linux_rpi2;
   linuxPackages_rpi3 = linuxKernel.packages.linux_rpi3;
@@ -489,7 +488,6 @@ mapAliases ({
   linux-rt_5_4 = linuxKernel.kernels.linux_rt_5_4;
   linux_5_10 = linuxKernel.kernels.linux_5_10;
   linux-rt_5_10 = linuxKernel.kernels.linux_rt_5_10;
-  linux-rt_5_11 = linuxKernel.kernels.linux_rt_5_11;
   linux_5_14 = linuxKernel.kernels.linux_5_14;
   linux_5_15 = linuxKernel.kernels.linux_5_15;
 
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index 9ee3aa58e955..e109cca82077 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -159,14 +159,6 @@ in {
       ];
     };
 
-    linux_rt_5_11 = callPackage ../os-specific/linux/kernel/linux-rt-5.11.nix {
-      kernelPatches = [
-        kernelPatches.bridge_stp_helper
-        kernelPatches.request_key_helper
-        kernelPatches.export-rt-sched-migrate
-      ];
-    };
-
     linux_5_14 = callPackage ../os-specific/linux/kernel/linux-5.14.nix {
       kernelPatches = [
         kernelPatches.bridge_stp_helper
@@ -483,7 +475,6 @@ in {
      # realtime kernel packages
      linux_rt_5_4 = packagesFor kernels.linux_rt_5_4;
      linux_rt_5_10 = packagesFor kernels.linux_rt_5_10;
-     linux_rt_5_11 = packagesFor kernels.linux_rt_5_11;
   };
 
   rpiPackages = {
@@ -526,7 +517,7 @@ in {
     linux_latest = packages.linux_5_15;
     linux_mptcp = packages.linux_mptcp_95;
     linux_rt_default = packages.linux_rt_5_4;
-    linux_rt_latest = packages.linux_rt_5_11;
+    linux_rt_latest = packages.linux_rt_5_10;
     linux_hardkernel_latest = packages.hardkernel_4_14;
   };