diff --git a/pkgs/development/libraries/leptonica/default.nix b/pkgs/development/libraries/leptonica/default.nix
index 11f1c7fd9c67..363140b5f58f 100644
--- a/pkgs/development/libraries/leptonica/default.nix
+++ b/pkgs/development/libraries/leptonica/default.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   pname = "leptonica";
-  version = "1.80.0";
+  version = "1.81.0";
 
   src = fetchurl {
     url = "http://www.leptonica.org/source/${pname}-${version}.tar.gz";
-    sha256 = "192bs676ind8627f0v3v8d1q7r4xwc7q0zvbdbxn1fgvmv14d77c";
+    sha256 = "sha256-0ZKwVem9YLhBEQI8yYDDc5Dm1CexlKj9K9YRVDo73a0=";
   };
 
   nativeBuildInputs = [ autoreconfHook pkg-config ];