diff --git a/pkgs/applications/misc/cura/default.nix b/pkgs/applications/misc/cura/default.nix
index 4c4fe9b1abdd..1b5c7c23956e 100644
--- a/pkgs/applications/misc/cura/default.nix
+++ b/pkgs/applications/misc/cura/default.nix
@@ -2,25 +2,26 @@
 
 mkDerivation rec {
   pname = "cura";
-  version = "4.5.0";
+  version = "4.6.1";
 
   src = fetchFromGitHub {
     owner = "Ultimaker";
     repo = "Cura";
     rev = version;
-    sha256 = "0fm04s912sgmr66wyb55ly4jh39ijsj6lx4fx9wn7hchlqmw5jxi";
+    sha256 = "0h1r9caa579d3gfpcmch54rdbkg5df64ds2v84iqsbxwjp0rmn4n";
   };
 
   materials = fetchFromGitHub {
     owner = "Ultimaker";
     repo = "fdm_materials";
     rev = version;
-    sha256 = "0fgkwz1anw49macq1jxjhjr79slhmx7g3zwij7g9fqyzzhrrmwqn";
+    sha256 = "1k5c3qmixhpz3z2yi0fysxcyyf1yhcwmdlrcypkw827lhsialqp4";
   };
 
   buildInputs = [ qtbase qtquickcontrols2 qtgraphicaleffects ];
   propagatedBuildInputs = with python3.pkgs; [
     libsavitar numpy-stl pyserial requests uranium zeroconf
+    sentry-sdk trimesh
   ] ++ plugins;
   nativeBuildInputs = [ cmake python3.pkgs.wrapPython ];
 
diff --git a/pkgs/applications/misc/cura/plugins.nix b/pkgs/applications/misc/cura/plugins.nix
index 35d6c97fa0b5..9fbe647046c0 100644
--- a/pkgs/applications/misc/cura/plugins.nix
+++ b/pkgs/applications/misc/cura/plugins.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchpatch, cmake, python3Packages }:
+{ stdenv, fetchFromGitHub, fetchpatch, python3Packages }:
 
 let
 
@@ -6,21 +6,24 @@ let
 
     octoprint = stdenv.mkDerivation rec {
       pname = "Cura-OctoPrintPlugin";
-      version = "3.5.11";
+      version = "3.5.12";
 
       src = fetchFromGitHub {
         owner = "fieldOfView";
         repo = pname;
-        rev = "3cef0a955ae7ccfa5c07d20d9d147c530cc9d6ec";
-        sha256 = "0q9bkwgpsbfwkp1bfaxq3wm9pbwx5d7ji0jr7cwc4y5nizji81is";
+        rev = "ad522c0b7ead5fbe28da686a3cc75e351274c2bc";
+        sha256 = "0ln11ng32bh0smfsk54mv2j3sadh0gwf031nmm95zrvbj9cr6yc0";
       };
 
-      nativeBuildInputs = [ cmake ];
-
       propagatedBuildInputs = with python3Packages; [
         netifaces
       ];
 
+      installPhase = ''
+        mkdir -p $out/lib/cura/plugins/OctoPrintPlugin
+        cp -rv . $out/lib/cura/plugins/OctoPrintPlugin/
+      '';
+
       meta = with stdenv.lib; {
         description = "Enables printing directly to OctoPrint and monitoring the process";
         homepage = "https://github.com/fieldOfView/Cura-OctoPrintPlugin";
diff --git a/pkgs/development/python-modules/libarcus/default.nix b/pkgs/development/python-modules/libarcus/default.nix
index a3f795f254e8..cd5f0aef648c 100644
--- a/pkgs/development/python-modules/libarcus/default.nix
+++ b/pkgs/development/python-modules/libarcus/default.nix
@@ -3,7 +3,7 @@
 
 buildPythonPackage rec {
   pname = "libarcus";
-  version = "4.5.0";
+  version = "4.6.1";
   format = "other";
 
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/libsavitar/default.nix b/pkgs/development/python-modules/libsavitar/default.nix
index c7b12e3daf56..32717e127fb8 100644
--- a/pkgs/development/python-modules/libsavitar/default.nix
+++ b/pkgs/development/python-modules/libsavitar/default.nix
@@ -2,14 +2,14 @@
 
 buildPythonPackage rec {
   pname = "libsavitar";
-  version = "4.5.0";
+  version = "4.6.1";
   format = "other";
 
   src = fetchFromGitHub {
     owner = "Ultimaker";
     repo = "libSavitar";
     rev = version;
-    sha256 = "1l3l8cgaxzqdk93880p2ijrabshdj5sq05cwj1i6jpmhlqc5b9rx";
+    sha256 = "0nk8zl5b0b36wrrkj271ck4phzxsigkjsazndscjslc9nkldmnpq";
   };
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/trimesh/default.nix b/pkgs/development/python-modules/trimesh/default.nix
new file mode 100644
index 000000000000..a65ea1e98ba5
--- /dev/null
+++ b/pkgs/development/python-modules/trimesh/default.nix
@@ -0,0 +1,24 @@
+{ lib, buildPythonPackage, fetchPypi, numpy }:
+
+buildPythonPackage rec {
+  pname = "trimesh";
+  version = "3.6.36";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1m8dqqyzazrjk4d32cqn4d8gvbfcwgs2qbmgvpi2f2mi5vnp6d85";
+  };
+
+  propagatedBuildInputs = [ numpy ];
+
+  # tests are not included in pypi distributions and would require lots of
+  # optional dependencies
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Python library for loading and using triangular meshes.";
+    homepage = "https://trimsh.org/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gebner ];
+  };
+}
diff --git a/pkgs/development/python-modules/uranium/default.nix b/pkgs/development/python-modules/uranium/default.nix
index 1ab67be5bdc1..af13fa8d17af 100644
--- a/pkgs/development/python-modules/uranium/default.nix
+++ b/pkgs/development/python-modules/uranium/default.nix
@@ -2,7 +2,7 @@
 , pyqt5, numpy, scipy, shapely, libarcus, doxygen, gettext, pythonOlder }:
 
 buildPythonPackage rec {
-  version = "4.5.0";
+  version = "4.6.1";
   pname = "uranium";
   format = "other";
 
@@ -10,7 +10,7 @@ buildPythonPackage rec {
     owner = "Ultimaker";
     repo = "Uranium";
     rev = version;
-    sha256 = "1l8fwj521irla42bdbw298d3c5rjpn1nm9xhjnx7hidbqixr5d27";
+    sha256 = "07pksjbgxs1ks2i6pgxkwfg9c56pcql7f9p89dnwaf2rcn7yhx6r";
   };
 
   disabled = pythonOlder "3.5.0";
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e54a4e9fe456..c356700167eb 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1479,6 +1479,8 @@ in {
 
   transforms3d = callPackage ../development/python-modules/transforms3d { };
 
+  trimesh = callPackage ../development/python-modules/trimesh {};
+
   sentinel = callPackage ../development/python-modules/sentinel { };
 
   sentry-sdk = callPackage ../development/python-modules/sentry-sdk {};