diff --git a/pkgs/development/compilers/sbcl/2.x.nix b/pkgs/development/compilers/sbcl/2.x.nix
index 73794e3ec728..fa5382449cb5 100644
--- a/pkgs/development/compilers/sbcl/2.x.nix
+++ b/pkgs/development/compilers/sbcl/2.x.nix
@@ -19,17 +19,16 @@ let
       sha256 = "189gjqzdz10xh3ybiy4ch1r98bsmkcb4hpnrmggd4y2g5kqnyx4y";
     };
 
-    "2.2.11" = {
-      sha256 = "sha256-NgfWgBZzGICEXO1dXVXGBUzEnxkSGhUCfmxWB66Elt8=";
-    };
-
-    "2.3.0" = {
-      sha256 = "sha256-v3Q5SXEq4Cy3ST87i1fOJBlIv2ETHjaGDdszTaFDnJc=";
-    };
-
+    # The loosely held nixpkgs convention for SBCL is to keep the last two
+    # versions.
+    # https://github.com/NixOS/nixpkgs/pull/200994#issuecomment-1315042841
     "2.3.2" = {
       sha256 = "sha256-RMwWLPpjMqmojHoSHRkDiCikuk9r/7d+8cexdAfLHqo=";
     };
+
+    "2.3.4" = {
+      sha256 = "sha256-8RtHZMbqvbJ+WpxGshcgTRG82lNOc7+XBz1Xgx0gnE4=";
+    };
   };
 
 in with versionMap.${version};
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 921edab61a14..acea2323d310 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24737,19 +24737,15 @@ with pkgs;
     pkg = callPackage ../development/compilers/sbcl/bootstrap.nix {};
     faslExt = "fasl";
   };
-  sbcl_2_2_11 = wrapLisp {
-    pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.2.11"; };
-    faslExt = "fasl";
-  };
-  sbcl_2_3_0 = wrapLisp {
-    pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.0"; };
-    faslExt = "fasl";
-  };
   sbcl_2_3_2 = wrapLisp {
     pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.2"; };
     faslExt = "fasl";
   };
-  sbcl = sbcl_2_3_2;
+  sbcl_2_3_4 = wrapLisp {
+    pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.4"; };
+    faslExt = "fasl";
+  };
+  sbcl = sbcl_2_3_4;
 
   sbclPackages = recurseIntoAttrs sbcl.pkgs;