diff --git a/pkgs/development/coq-modules/bignums/default.nix b/pkgs/development/coq-modules/bignums/default.nix
index 0e8cead0b31..88d7e461a31 100644
--- a/pkgs/development/coq-modules/bignums/default.nix
+++ b/pkgs/development/coq-modules/bignums/default.nix
@@ -25,6 +25,10 @@ let params = {
         rev = "V8.11.0";
         sha256 = "1xcd7c7qlvs0narfba6px34zq0mz8rffnhxw0kzhhg6i4iw115dp";
       };
+      "8.12" = {
+        rev = "V8.12.0";
+        sha256 = "14ijb3qy2hin3g4djx437jmnswxxq7lkfh3dwh9qvrds9a015yg8";
+      };
     };
     param = params.${coq.coq-version};
 in