diff --git a/pkgs/by-name/rm/rmg/package.nix b/pkgs/by-name/rm/rmg/package.nix
index 50c6e4306ffe..8dcd685da4dd 100644
--- a/pkgs/by-name/rm/rmg/package.nix
+++ b/pkgs/by-name/rm/rmg/package.nix
@@ -30,13 +30,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "rmg";
-  version = "0.6.5";
+  version = "0.6.6";
 
   src = fetchFromGitHub {
     owner = "Rosalie241";
     repo = "RMG";
     rev = "v${version}";
-    hash = "sha256-mgb9Ed11fBQVnhhU5w1958a19dbTOL0ADczUOxKAnqA=";
+    hash = "sha256-3Bl9SEHWQbi58VPpCT4H8TC1E5J5j4lRXS1QF+udPdg=";
   };
 
   nativeBuildInputs = [