diff --git a/pkgs/by-name/as/astyle/package.nix b/pkgs/by-name/as/astyle/package.nix
index fd29ba87d9b1..ff8b00e52b26 100644
--- a/pkgs/by-name/as/astyle/package.nix
+++ b/pkgs/by-name/as/astyle/package.nix
@@ -9,11 +9,11 @@
 
 stdenv.mkDerivation rec {
   pname = "astyle";
-  version = "3.6.5";
+  version = "3.6.6";
 
   src = fetchurl {
     url = "mirror://sourceforge/${pname}/${pname}-${version}.tar.bz2";
-    hash = "sha256-8jHNZBBHrbbAGtslEVczJqi7eik9F7VMdwVQmT3q3os=";
+    hash = "sha256-5zGiYq7s3049XM3YxzuDJ0mxJ3B4Rk6naXrbom5ua7Y=";
   };
 
   nativeBuildInputs = [ cmake ];