diff --git a/pkgs/development/compilers/sbcl/2.x.nix b/pkgs/development/compilers/sbcl/2.x.nix
index 8fcb1c7c043a..cfd6166d0456 100644
--- a/pkgs/development/compilers/sbcl/2.x.nix
+++ b/pkgs/development/compilers/sbcl/2.x.nix
@@ -19,16 +19,12 @@ let
       sha256 = "189gjqzdz10xh3ybiy4ch1r98bsmkcb4hpnrmggd4y2g5kqnyx4y";
     };
 
-    # The loosely held nixpkgs convention for SBCL is to keep the last two
-    # versions.
-    # https://github.com/NixOS/nixpkgs/pull/200994#issuecomment-1315042841
-    "2.3.6" = {
-      sha256 = "sha256-tEFMpNmnR06NiE19YyN+LynvRZ39WoSEJKnD+lUdGbk=";
-    };
-
     "2.3.7" = {
       sha256 = "sha256-aYFE+4BaMZGaYQ3pmauYOR1S62mK2qjKGbKPxu0Nmfc=";
     };
+    "2.3.8" = {
+      sha256 = "sha256-QhVxsqyRbli+jrzqXvSr+NeQKGPbah0KXvqVAK3KDSk=";
+    };
   };
 
 in with versionMap.${version};
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9059aec03987..1da9a12a21be 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -26141,17 +26141,17 @@ with pkgs;
     pkg = callPackage ../development/compilers/sbcl/bootstrap.nix {};
     faslExt = "fasl";
   };
-  sbcl_2_3_6 = wrapLisp {
-    pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.6"; };
-    faslExt = "fasl";
-    flags = [ "--dynamic-space-size" "3000" ];
-  };
   sbcl_2_3_7 = wrapLisp {
     pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.7"; };
     faslExt = "fasl";
     flags = [ "--dynamic-space-size" "3000" ];
   };
-  sbcl = sbcl_2_3_7;
+  sbcl_2_3_8 = wrapLisp {
+    pkg = callPackage ../development/compilers/sbcl/2.x.nix { version = "2.3.8"; };
+    faslExt = "fasl";
+    flags = [ "--dynamic-space-size" "3000" ];
+  };
+  sbcl = sbcl_2_3_8;
 
   sbclPackages = recurseIntoAttrs sbcl.pkgs;