diff --git a/pkgs/by-name/li/libblake3/package.nix b/pkgs/by-name/li/libblake3/package.nix
index bd03de8f4956..6fcc0231d706 100644
--- a/pkgs/by-name/li/libblake3/package.nix
+++ b/pkgs/by-name/li/libblake3/package.nix
@@ -3,31 +3,21 @@
   stdenv,
   cmake,
   fetchFromGitHub,
-  fetchpatch,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libblake3";
-  version = "1.5.4";
+  version = "1.5.5";
 
   src = fetchFromGitHub {
     owner = "BLAKE3-team";
     repo = "BLAKE3";
     rev = "refs/tags/${finalAttrs.version}";
-    hash = "sha256-WatbhExS0j2neYsrfbNhYxrckLiXHwQBjctuowtQW+U=";
+    hash = "sha256-2M8OQNmtWwfDcbZYspaxpGz2clpfILru//4+P6dClNw=";
   };
 
   sourceRoot = finalAttrs.src.name + "/c";
 
-  patches = [
-    # Fix pkg-config for absolute CMAKE_INSTALL_*DIR
-    (fetchpatch {
-      url = "https://github.com/BLAKE3-team/BLAKE3/commit/aa3e8ec32a389461babde3789d6ac50ee3c38662.patch";
-      hash = "sha256-V8o85EnRoqYvatqYwdr7h2TBwSOSlKrqfJWPPkQhU+c=";
-      stripLen = 1;
-    })
-  ];
-
   nativeBuildInputs = [
     cmake
   ];