diff --git a/pkgs/tools/text/diffstat/default.nix b/pkgs/tools/text/diffstat/default.nix
index 15baee3c39d1..0b10014e0e6e 100644
--- a/pkgs/tools/text/diffstat/default.nix
+++ b/pkgs/tools/text/diffstat/default.nix
@@ -2,14 +2,14 @@
 
 stdenv.mkDerivation rec {
   pname = "diffstat";
-  version = "1.65";
+  version = "1.66";
 
   src = fetchurl {
     urls = [
       "ftp://ftp.invisible-island.net/diffstat/diffstat-${version}.tgz"
       "https://invisible-mirror.net/archives/diffstat/diffstat-${version}.tgz"
     ];
-    sha256 = "sha256-jPJ0JJJt682FkhdVw5FVWSiCRL0QP2LXQNxrg7VXooo=";
+    sha256 = "sha256-9UUxu+Mujg+kYfAYtB469Ra2MggBcvNh8F5QNn7Ltp4=";
   };
 
   meta = with lib; {