diff --git a/pkgs/desktops/gnome-3/core/gnome-shell/default.nix b/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
index e2d14ffcd26..c4fec93079a 100644
--- a/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
+++ b/pkgs/desktops/gnome-3/core/gnome-shell/default.nix
@@ -15,11 +15,11 @@ let
 
 in stdenv.mkDerivation rec {
   pname = "gnome-shell";
-  version = "3.34.2";
+  version = "3.34.3";
 
   src = fetchurl {
     url = "mirror://gnome/sources/gnome-shell/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "0k9vq2gh1nhdd6fpp7jnwx37qxaakawiqw1xnlfjvq5g5zdn8ckh";
+    sha256 = "12mxavjf83d96qd5m8k0z2jnpi1587i25al5w9xpv965hvrvwx14";
   };
 
   LANG = "en_US.UTF-8";
diff --git a/pkgs/desktops/gnome-3/core/mutter/default.nix b/pkgs/desktops/gnome-3/core/mutter/default.nix
index 61024788f15..642a825d539 100644
--- a/pkgs/desktops/gnome-3/core/mutter/default.nix
+++ b/pkgs/desktops/gnome-3/core/mutter/default.nix
@@ -42,13 +42,13 @@
 
 stdenv.mkDerivation rec {
   pname = "mutter";
-  version = "3.34.2";
+  version = "3.34.3";
 
   outputs = [ "out" "dev" "man" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/mutter/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "0b8bz5kvs7rlwvqsg87cf6jhrrj95vgd1l235mjx8rip35ipfvrd";
+    sha256 = "12aaxmclg3aw7qkk3pzpw8f5vrk0cxwprdrjnx9bjpf31gfpvxfd";
   };
 
   mesonFlags = [