diff --git a/pkgs/applications/networking/instant-messengers/jackline/default.nix b/pkgs/applications/networking/instant-messengers/jackline/default.nix
index 35099f2bf1fe..6cff3de031f0 100644
--- a/pkgs/applications/networking/instant-messengers/jackline/default.nix
+++ b/pkgs/applications/networking/instant-messengers/jackline/default.nix
@@ -19,6 +19,10 @@ buildDunePackage {
     hash = "sha256-6QZZ77C1G3x/GOJsUEQMrCatVsyyxNjq36ez/TgeHSY=";
   };
 
+  postPatch = ''
+    substituteInPlace cli/dune --replace-warn 'notty notty.lwt' 'notty-community.lwt'
+  '';
+
   nativeBuildInputs = [
     ppx_sexp_conv
     ppx_deriving
@@ -35,7 +39,7 @@ buildDunePackage {
     otr
     astring
     ptime
-    notty
+    notty-community
     sexplib
     hex
     uchar
diff --git a/pkgs/by-name/do/docfd/nottui-unix.patch b/pkgs/by-name/do/docfd/nottui-unix.patch
index 03a61576d00d..738c7871dafc 100644
--- a/pkgs/by-name/do/docfd/nottui-unix.patch
+++ b/pkgs/by-name/do/docfd/nottui-unix.patch
@@ -1,20 +1,8 @@
-diff --git a/bin/dune b/bin/dune
-index e0ddc1f..a4e8523 100644
---- a/bin/dune
-+++ b/bin/dune
-@@ -47,6 +47,7 @@
-             notty
-             notty.unix
-             nottui
-+            nottui-unix
-             lwd
-             oseq
-             eio
-diff --git a/bin/ui_base.ml b/bin/ui_base.ml
-index f56ee8d..8d8ed70 100644
+diff --git a/bin/UI_base.ml b/bin/UI_base.ml
+index efb1d14..ce6a2a4 100644
 --- a/bin/UI_base.ml
 +++ b/bin/UI_base.ml
-@@ -587,7 +587,7 @@ let ui_loop ~quit ~term root =
+@@ -787,7 +787,7 @@ let ui_loop ~quit ~term root =
        if term_width <> prev_term_width || term_height <> prev_term_height then (
          Lwd.set Vars.term_width_height (term_width, term_height)
        );
@@ -23,3 +11,20 @@ index f56ee8d..8d8ed70 100644
          ~process_event:true
          ~timeout:0.05
          ~renderer
+diff --git a/bin/dune b/bin/dune
+index c4905a4..7c7b55d 100644
+--- a/bin/dune
++++ b/bin/dune
+@@ -44,9 +44,10 @@
+             containers.unix
+             cmdliner
+             fmt
+-            notty
+-            notty.unix
++            notty-community
++            notty-community.unix
+             nottui
++            nottui-unix
+             lwd
+             oseq
+             eio
diff --git a/pkgs/by-name/do/docfd/package.nix b/pkgs/by-name/do/docfd/package.nix
index 6e4d4663bb5e..d039b22058e7 100644
--- a/pkgs/by-name/do/docfd/package.nix
+++ b/pkgs/by-name/do/docfd/package.nix
@@ -53,7 +53,7 @@ ocamlPackages.buildDunePackage rec {
     lwd
     nottui
     nottui-unix
-    notty
+    notty-community
     ocaml_sqlite3
     ocolor
     oseq
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 343f0b74899b..0b7da03ab0a3 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1442,8 +1442,6 @@ let
 
         nottui-unix = callPackage ../development/ocaml-modules/lwd/nottui-unix.nix { };
 
-        notty = callPackage ../development/ocaml-modules/notty { };
-
         notty-community = callPackage ../development/ocaml-modules/notty-community { };
 
         npy = callPackage ../development/ocaml-modules/npy {
@@ -2363,6 +2361,7 @@ let
         dune_2 = pkgs.dune_2; # Added 2025-12-08
         dune_3 = pkgs.dune_3; # Added 2025-12-08
         gd4o = throw "ocamlPackages.gd4o is not maintained, use ocamlPackages.gd instead";
+        notty = throw "2026-05-05: notty is no longer maintained, use notty-community instead";
         ocaml-freestanding = throw "ocamlPackages.ocaml-freestanding has been removed due to being broken for more than a year; see RFC 180"; # Added 2026-02-05
         ocaml-vdom = throw "2023-10-09: ocamlPackages.ocaml-vdom was renamed to ocamlPackages.vdom";
         ocaml_lwt = throw "ocamlPackages.ocaml_lwt has been renamed to ocamlPackages.lwt"; # Added 2025-12-05