diff --git a/pkgs/applications/audio/espeak-ng/default.nix b/pkgs/applications/audio/espeak-ng/default.nix
index 84eb4e1d39c9..28b60fa60074 100644
--- a/pkgs/applications/audio/espeak-ng/default.nix
+++ b/pkgs/applications/audio/espeak-ng/default.nix
@@ -18,13 +18,13 @@
 
 stdenv.mkDerivation rec {
   pname = "espeak-ng";
-  version = "1.51";
+  version = "1.51.1";
 
   src = fetchFromGitHub {
     owner = "espeak-ng";
     repo = "espeak-ng";
     rev = version;
-    hash = "sha256-KwzMlQ3/JgpNOpuV4zNc0zG9oWEGFbVSJ4bEd3dtD3Y=";
+    hash = "sha256-aAJ+k+kkOS6k835mEW7BvgAIYGhUHxf7Q4P5cKO8XTk=";
   };
 
   patches = lib.optionals mbrolaSupport [