diff --git a/nixos/tests/zfs.nix b/nixos/tests/zfs.nix
index 13db2c8e06be6..75b41b7aac1dc 100644
--- a/nixos/tests/zfs.nix
+++ b/nixos/tests/zfs.nix
@@ -191,12 +191,6 @@ let
 
 in {
 
-  # maintainer: @raitobezarius
-  series_2_1 = makeZfsTest {
-    zfsPackage = pkgs.zfs_2_1;
-    kernelPackages = pkgs.linuxPackages;
-  };
-
   series_2_2 = makeZfsTest {
     zfsPackage = pkgs.zfs_2_2;
     kernelPackages = pkgs.linuxPackages;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7543000e79611..c193b55ad3cb5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12924,9 +12924,6 @@ with pkgs;
 
   inherit
     ({
-      zfs_2_1 = callPackage ../os-specific/linux/zfs/2_1.nix {
-        configFile = "user";
-      };
       zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
         configFile = "user";
       };
@@ -12934,7 +12931,6 @@ with pkgs;
         configFile = "user";
       };
     })
-    zfs_2_1
     zfs_2_2
     zfs_unstable;
   zfs = zfs_2_2;
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index 5dc2bf56e8afa..0cb0c87adfe7d 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -578,10 +578,6 @@ in {
 
     zenpower = callPackage ../os-specific/linux/zenpower { };
 
-    zfs_2_1 = callPackage ../os-specific/linux/zfs/2_1.nix {
-      configFile = "kernel";
-      inherit pkgs kernel;
-    };
     zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
       configFile = "kernel";
       inherit pkgs kernel;