diff --git a/flake.lock b/flake.lock
index 611fb9ef..ad67c407 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "emacs-overlay": {
       "locked": {
-        "lastModified": 1621158380,
-        "narHash": "sha256-r8pc3IFkEQ9MZDdSnR4+VUEnpjPsJYUzp+jJ5WZx9Qc=",
+        "lastModified": 1621479520,
+        "narHash": "sha256-Rg3zltlqLYiK5r2To1nQQew1+pg5CmFm3b6iiF00miU=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "cf0d6b88cb65565d732db0db12038dc1db47b859",
+        "rev": "17492ddf37e8104da2b8d4b44e689b42a0a9476c",
         "type": "github"
       },
       "original": {
@@ -38,11 +38,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1621135068,
-        "narHash": "sha256-aPJlgosfLp3QtPDFLf/N7qNpIo5Q45MpYyzlaACL2G4=",
+        "lastModified": 1621417094,
+        "narHash": "sha256-Csk4p8jFUma7FtMnjEJGTPGxCOnTbb30xr8AXwrUTMM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "77188bcd6e2c6c7a99253b36f08ed7b65f2901d2",
+        "rev": "3d18912f5ae7c98bd5249411d98cdf3b28fe1f09",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1621165930,
-        "narHash": "sha256-llqY1DscZwHEhHoruxbCYKU2NNsfP0/hoTSxXmCmgew=",
+        "lastModified": 1621470282,
+        "narHash": "sha256-oZmUb1snJn0E2SCK2lpsTfdmQ59DKoR+6RBLH9qwNQ4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9b92a817238eae3e2f3dfbc8d205a5a1c0d1461c",
+        "rev": "62b840ba3fb462c159bc4226bec4288e1064a853",
         "type": "github"
       },
       "original": {
diff --git a/modules/emacs.nix b/modules/emacs.nix
index 99f2da6e..ffa9cc60 100644
--- a/modules/emacs.nix
+++ b/modules/emacs.nix
@@ -3,7 +3,7 @@
 let
   emacsPkg = pkgs.emacsWithPackagesFromUsePackage {
     config = ./emacs/init.el;
-    package = pkgs.emacsPgtk;
+    package = pkgs.emacsPgtkGcc;
     alwaysEnsure = true;
     extraEmacsPackages = epkgs: [
       # mu4e is included in the mu package and should be used from there
diff --git a/patches/123757.patch b/patches/123757.patch
new file mode 100644
index 00000000..b51dbaba
--- /dev/null
+++ b/patches/123757.patch
@@ -0,0 +1,32 @@
+From 3bd0e3b5189ae5d8ed31f14e231c09b38b5f558e Mon Sep 17 00:00:00 2001
+From: Pierre Bourdon <delroth@gmail.com>
+Date: Thu, 20 May 2021 04:13:35 +0200
+Subject: [PATCH] libvdpau-va-gl: drop obsolete ffmpeg_3 dependency
+
+I couldn't find any reference as to why this dependency would be
+required for 0.4.2. Digging into the changelog, it looks like 0.4.0
+dropped the libswscale dependency, so this seems like it's now unneeded.
+---
+ pkgs/development/libraries/libvdpau-va-gl/default.nix | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/pkgs/development/libraries/libvdpau-va-gl/default.nix b/pkgs/development/libraries/libvdpau-va-gl/default.nix
+index 85ebef12fe1fda..7a042a172c821a 100644
+--- a/pkgs/development/libraries/libvdpau-va-gl/default.nix
++++ b/pkgs/development/libraries/libvdpau-va-gl/default.nix
+@@ -1,5 +1,5 @@
+ { lib, stdenv, fetchFromGitHub, cmake, pkg-config, libX11, libpthreadstubs, libXau, libXdmcp
+-, libXext, libvdpau, glib, libva, ffmpeg_3, libGLU }:
++, libXext, libvdpau, glib, libva, libGLU }:
+ 
+ stdenv.mkDerivation rec {
+   pname = "libvdpau-va-gl";
+@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
+   };
+ 
+   nativeBuildInputs = [ cmake pkg-config ];
+-  buildInputs = [ libX11 libpthreadstubs libXau libXdmcp libXext libvdpau glib libva ffmpeg_3 libGLU ];
++  buildInputs = [ libX11 libpthreadstubs libXau libXdmcp libXext libvdpau glib libva libGLU ];
+ 
+   doCheck = false; # fails. needs DRI access
+