diff --git a/pkgs/by-name/si/signaturepdf/package.nix b/pkgs/by-name/si/signaturepdf/package.nix
index be7c2fdd308b..d7d18509ac51 100644
--- a/pkgs/by-name/si/signaturepdf/package.nix
+++ b/pkgs/by-name/si/signaturepdf/package.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation rec {
   pname = "signaturepdf";
-  version = "1.5.0";
+  version = "1.5.1";
 
   src = fetchFromGitHub {
     owner = "24eme";
     repo = "${pname}";
     rev = "v${version}";
-    hash = "sha256-7yhvTxpjxHcmRxTE7avM+dN+yz9iVr8Ea/e2yfkBURA=";
+    hash = "sha256-5isvVyT8s2ZAhLP4x/jjxDssBQ2WAvYDkGOWf3NcjHM=";
   };
 
   nativeBuildInputs = [ makeWrapper ];