diff --git a/pkgs/development/python-modules/cohere/default.nix b/pkgs/development/python-modules/cohere/default.nix
index 133721ca4d74..b95344d3a661 100644
--- a/pkgs/development/python-modules/cohere/default.nix
+++ b/pkgs/development/python-modules/cohere/default.nix
@@ -15,7 +15,7 @@
 buildPythonPackage rec {
   pname = "cohere";
   version = "4.37";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -24,15 +24,6 @@ buildPythonPackage rec {
     hash = "sha256-eIAh2dmSxsMdGYXZXMyyd8cmWILErNekmz5H2ne0vsg=";
   };
 
-  patches = [
-    # https://github.com/cohere-ai/cohere-python/pull/289
-    (fetchpatch {
-      name = "replace-poetry-with-poetry-core.patch";
-      url = "https://github.com/cohere-ai/cohere-python/commit/e86480336331c0cf6f67e26b0825467dfca5b277.patch";
-      hash = "sha256-P1Ioq5ypzT3tx6cxrI3ep34Fi4cUx88YkfJ5ErN3VHk=";
-    })
-  ];
-
   nativeBuildInputs = [
     poetry-core
   ];