diff --git a/pkgs/by-name/ma/manifold/package.nix b/pkgs/by-name/ma/manifold/package.nix
index 6eafc1e001af..994cac355cca 100644
--- a/pkgs/by-name/ma/manifold/package.nix
+++ b/pkgs/by-name/ma/manifold/package.nix
@@ -11,13 +11,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "manifold";
-  version = "2.5.1-unstable-2024-09-15";
+  version = "2.5.1-unstable-2024-11-08";
 
   src = fetchFromGitHub {
     owner = "elalish";
     repo = "manifold";
-    rev = "22c66051dfdbcefa2012e30dd12c9b5a20f89a01";
-    hash = "sha256-Fbev5dTgXjXdC7fzWfHnypTBel++DiMns8OzN1bH1OA=";
+    rev = "66bca6e3fdfce0f590ca84edc1a6256502636f4b";
+    hash = "sha256-XgmJtkBf5SOgvtwU2x1cJLjEQKEmKnB40oIaoYrUYEQ=";
   };
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/by-name/op/openscad-unstable/package.nix b/pkgs/by-name/op/openscad-unstable/package.nix
index 4d584318c64a..3c61c0d1835b 100644
--- a/pkgs/by-name/op/openscad-unstable/package.nix
+++ b/pkgs/by-name/op/openscad-unstable/package.nix
@@ -43,12 +43,12 @@
 # clang consume much less RAM than GCC
 clangStdenv.mkDerivation rec {
   pname = "openscad-unstable";
-  version = "2024-10-06";
+  version = "2024-11-10";
   src = fetchFromGitHub {
     owner = "openscad";
     repo = "openscad";
-    rev = "4e4543d85dfb19630ffe499b75828d48d246bd22";
-    hash = "sha256-k1RjXwjigQAVKUHeAJAyJxfCr8qNkCDFq9p78sudjgs=";
+    rev = "681fff1cdcd5f67253958c39d9fefdc3762b38d8";
+    hash = "sha256-aFrlFFbpEBt4JJ3HCZLmaptomZBpCTqLD7vKIspDX74=";
     fetchSubmodules = true;  # Only really need sanitizers-cmake and MCAD
   };