diff --git a/pkgs/tools/misc/tmuxp/default.nix b/pkgs/tools/misc/tmuxp/default.nix
index b24c3ead956d..84a4519c0ea5 100644
--- a/pkgs/tools/misc/tmuxp/default.nix
+++ b/pkgs/tools/misc/tmuxp/default.nix
@@ -6,13 +6,18 @@ let
 in
 pypkgs.buildPythonApplication rec {
   pname = "tmuxp";
-  version = "1.11.0";
+  version = "1.12.1";
 
   src = pypkgs.fetchPypi {
     inherit pname version;
-    sha256 = "sha256-N5kZ+e17ZgLOCvV/lcT/hdG1VNqLxh98QOQyM0BmZCA=";
+    sha256 = "078624c5ac7aa4142735f856fadb9281fcebb10e6b98d1be2b2f2bbd106613b9";
   };
 
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "libtmux>=0.12.0,<0.13.0" "libtmux"
+  '';
+
   # No tests in archive
   doCheck = false;