diff --git a/pkgs/development/python-modules/textual/default.nix b/pkgs/development/python-modules/textual/default.nix
index 8ab0f653b73d8..024191e08bed7 100644
--- a/pkgs/development/python-modules/textual/default.nix
+++ b/pkgs/development/python-modules/textual/default.nix
@@ -29,14 +29,14 @@
 
 buildPythonPackage rec {
   pname = "textual";
-  version = "3.7.1";
+  version = "4.0.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "Textualize";
     repo = "textual";
     tag = "v${version}";
-    hash = "sha256-ceA4Mv/oq4tZRC8rY6xkpuAcS/f3GXcY891EoOCES/M=";
+    hash = "sha256-rVDr4Snp5qnErxWRM9yoxnzzX8gg8nD3RbBkL1rmgqI=";
   };
 
   build-system = [ poetry-core ];