diff --git a/pkgs/by-name/ns/nsync/package.nix b/pkgs/by-name/ns/nsync/package.nix
index 316775124b44..601376952bd6 100644
--- a/pkgs/by-name/ns/nsync/package.nix
+++ b/pkgs/by-name/ns/nsync/package.nix
@@ -16,6 +16,14 @@ stdenv.mkDerivation rec {
     hash = "sha256-RAwrS8Vz5fZwZRvF4OQfn8Ls11S8OIV2TmJpNrBE4MI=";
   };
 
+  postPatch = ''
+    # CMake 3.0 is deprecated and is no longer supported by CMake > 4
+    # inline of https://github.com/google/nsync/pull/27
+    substituteInPlace CMakeLists.txt \
+     --replace-fail "cmake_minimum_required (VERSION 2.8.12)" \
+       "cmake_minimum_required (VERSION 3.10)"
+  '';
+
   nativeBuildInputs = [ cmake ];
 
   # Needed for case-insensitive filesystems like on macOS