diff --git a/pkgs/applications/misc/qcad/default.nix b/pkgs/applications/misc/qcad/default.nix
index c36068e65962..e8d216d391d0 100644
--- a/pkgs/applications/misc/qcad/default.nix
+++ b/pkgs/applications/misc/qcad/default.nix
@@ -18,14 +18,14 @@
 
 mkDerivation rec {
   pname = "qcad";
-  version = "3.29.6.2";
+  version = "3.29.6.4";
 
   src = fetchFromGitHub {
     name = "qcad-${version}-src";
     owner = "qcad";
     repo = "qcad";
     rev = "v${version}";
-    hash = "sha256-NKWuvhVGtlhWOfV0MWyViTgk0luA8mvnwQS0TZj7Ulc=";
+    hash = "sha256-/Tz3brcny9wp8DnCvO7GpPczglJpJD0kWzBR6exRlPA=";
   };
 
   patches = [