diff --git a/pkgs/by-name/ni/nix-plugin-pijul/package.nix b/pkgs/by-name/ni/nix-plugin-pijul/package.nix
index b9b7f62f01ba8..3a4050c7065b3 100644
--- a/pkgs/by-name/ni/nix-plugin-pijul/package.nix
+++ b/pkgs/by-name/ni/nix-plugin-pijul/package.nix
@@ -75,10 +75,6 @@ in stdenv.mkDerivation (finalAttrs: {
     git = localRepoCheck nixVersions.git;
     nix_2_18 = localRepoCheck nixVersions.nix_2_18;
     nix_2_19 = localRepoCheck nixVersions.nix_2_19;
-    nix_2_20 = localRepoCheck nixVersions.nix_2_20;
-    nix_2_21 = localRepoCheck nixVersions.nix_2_21;
-    nix_2_22 = localRepoCheck nixVersions.nix_2_22;
-    nix_2_23 = localRepoCheck nixVersions.nix_2_23;
   };
 
   meta = {
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix
index 3a3169d3497fd..c4ed58001ecbe 100644
--- a/pkgs/tools/package-management/nix/default.nix
+++ b/pkgs/tools/package-management/nix/default.nix
@@ -185,30 +185,6 @@ in lib.makeExtensible (self: ({
     self_attribute_name = "nix_2_19";
   };
 
-  nix_2_20 = common {
-    version = "2.20.9";
-    hash = "sha256-b7smrbPLP/wcoBFCJ8j1UDNj0p4jiKT/6mNlDdlrOXA=";
-    self_attribute_name = "nix_2_20";
-  };
-
-  nix_2_21 = common {
-    version = "2.21.5";
-    hash = "sha256-/+TLpd6hvYMJFoeJvVZ+bZzjwY/jP6CxJRGmwKcXbI0=";
-    self_attribute_name = "nix_2_21";
-  };
-
-  nix_2_22 = common {
-    version = "2.22.4";
-    hash = "sha256-JWjJzMA+CeyImMgP2dhSBHQW4CS8wg7fc2zQ4WdKuBo=";
-    self_attribute_name = "nix_2_22";
-  };
-
-  nix_2_23 = common {
-    version = "2.23.4";
-    hash = "sha256-rugH4TUicHEdVfy3UuAobFIutqbuVco8Yg/z81g7clE=";
-    self_attribute_name = "nix_2_23";
-  };
-
   nix_2_24 = common {
     version = "2.24.10";
     hash = "sha256-XdeVy1/d6DEIYb3nOA6JIYF4fwMKNxtwJMgT3pHi+ko=";