diff --git a/pkgs/development/libraries/libunibreak/default.nix b/pkgs/development/libraries/libunibreak/default.nix
index 7dee1d6b1eca..f740bd82bb73 100644
--- a/pkgs/development/libraries/libunibreak/default.nix
+++ b/pkgs/development/libraries/libunibreak/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   pname = "libunibreak";
-  version = "5.0";
+  version = "5.1";
 
   src = let
       rev_version = lib.replaceStrings ["."] ["_"] version;
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     owner = "adah1972";
     repo = pname;
     rev = "libunibreak_${rev_version}";
-    sha256 = "sha256-ju+DNCzwD+y/ebLVBU96iNpE1Wt7/K0qLcZHzWGzrWQ=";
+    sha256 = "sha256-hjgT5DCQ6KFXKlxk9LLzxGHz6B71X/3Ot7ipK3KY85A=";
   };
 
   nativeBuildInputs = [ autoreconfHook ];