diff --git a/pkgs/applications/graphics/freecad/default.nix b/pkgs/applications/graphics/freecad/default.nix
index 3a5d36dfac19..f1e366b65699 100644
--- a/pkgs/applications/graphics/freecad/default.nix
+++ b/pkgs/applications/graphics/freecad/default.nix
@@ -9,13 +9,13 @@ let
   pythonPackages = python3Packages;
 in mkDerivation rec {
   pname = "freecad-unstable";
-  version = "2020-10-17";
+  version = "2020-12-08";
 
   src = fetchFromGitHub {
     owner = "FreeCAD";
     repo = "FreeCAD";
-    rev = "f3bdaaa55a6c03b297924c40819d23e4603fa55b";
-    sha256 = "1q1iy4i9k65v8z7h8a6r4bf5ycn124jp26xwp0xwbar4gnkx2jiq";
+    rev = "daea30341ea2d5eaf2bfb65614128a5fa2abc8b7";
+    sha256 = "1fza64lygqq35v7kzgqmiq5dvl5rpgkhlzv06f9dszdz44hznina";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/coin3d/default.nix b/pkgs/development/libraries/coin3d/default.nix
index 7fd676372534..c76aaa4c8e53 100644
--- a/pkgs/development/libraries/coin3d/default.nix
+++ b/pkgs/development/libraries/coin3d/default.nix
@@ -1,14 +1,15 @@
-{ fetchFromGitHub, stdenv, boost, cmake, libGL, libGLU }:
+{ fetchFromGitHub, stdenv, boost, cmake, libX11, libGL, libGLU }:
 
 stdenv.mkDerivation rec {
   pname = "coin";
-  version = "4.0.0";
+  version = "2020-12-07-unstable";
 
   src = fetchFromGitHub {
     owner = "coin3d";
     repo = "coin";
-    rev = "Coin-${version}";
-    sha256 = "1ayg0hl8wanhadahm5xbghghxw1qjwqbrs3dl3ngnff027hsyf8p";
+    # rev = "Coin-${version}";
+    rev = "d5539998aff272b349590fe74d068659682ecd0d";
+    sha256 = "11jaz8p9nn8jpd6dsgwgkldwr7z829gyf64g014qyyh8l6p7jzzd";
   };
 
   postPatch = ''
@@ -16,7 +17,7 @@ stdenv.mkDerivation rec {
   '';
 
   nativeBuildInputs = [ cmake ];
-  buildInputs = [ boost libGL libGLU ];
+  buildInputs = [ boost libX11 libGL libGLU ];
 
   meta = with stdenv.lib; {
     homepage = "https://github.com/coin3d/coin";
diff --git a/pkgs/development/libraries/soqt/default.nix b/pkgs/development/libraries/soqt/default.nix
index de11407e12b9..8d69c328eed9 100644
--- a/pkgs/development/libraries/soqt/default.nix
+++ b/pkgs/development/libraries/soqt/default.nix
@@ -1,12 +1,16 @@
-{ fetchurl, stdenv, coin3d, qtbase, cmake, pkgconfig }:
+{ fetchFromGitHub, stdenv, coin3d, qtbase, cmake, pkgconfig }:
 
 stdenv.mkDerivation rec {
   pname = "soqt";
-  version = "1.6.0";
+  version = "2020-12-05-unstable";
 
-  src = fetchurl {
-    url = "https://github.com/coin3d/soqt/releases/download/SoQt-${version}/soqt-${version}-src.tar.gz";
-    sha256 = "07qfljy286vb7y1p93205zn9sp1lpn0rcrqm5010gj87kzsmllwz";
+  src = fetchFromGitHub {
+    owner = "coin3d";
+    repo = "soqt";
+    # rev = "SoQt-${version}";
+    rev = "fb8f655632bb9c9c60e0ff9fa69a5ba22d3ff99d";
+    sha256 = "sha256-YoBq8P3Tag2Sepqxf/qIcJDBhH/gladBmDUj78aacZs=";
+    fetchSubmodules = true;
   };
 
   buildInputs = [ coin3d qtbase ];