diff --git a/pkgs/tools/audio/tts/default.nix b/pkgs/tools/audio/tts/default.nix
index f4c1f568bb7f..ff4001f3930a 100644
--- a/pkgs/tools/audio/tts/default.nix
+++ b/pkgs/tools/audio/tts/default.nix
@@ -15,14 +15,14 @@ let
 in
 python.pkgs.buildPythonApplication rec {
   pname = "tts";
-  version = "0.15.0";
+  version = "0.15.5";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "coqui-ai";
     repo = "TTS";
     rev = "refs/tags/v${version}";
-    hash = "sha256-pu0MqNXNQfvxo2VHpiEYIz1OvplydCYPKU/NsZD0mJw=";
+    hash = "sha256-r6qL8pSFYCltXyPSpZNvGRZKbm07zPLHorkDYjE//aI=";
   };
 
   postPatch = let