diff --git a/pkgs/by-name/ci/cinnamon-control-center/package.nix b/pkgs/by-name/ci/cinnamon-control-center/package.nix
index 64fc0d1f8f3b..96f1e1a38059 100644
--- a/pkgs/by-name/ci/cinnamon-control-center/package.nix
+++ b/pkgs/by-name/ci/cinnamon-control-center/package.nix
@@ -34,13 +34,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cinnamon-control-center";
-  version = "6.4.1";
+  version = "6.4.2";
 
   src = fetchFromGitHub {
     owner = "linuxmint";
     repo = "cinnamon-control-center";
     rev = version;
-    hash = "sha256-1Z+kXvBmENNXIqdZgPDx7ZSwJMFAm2oMih6eFFAsA/A=";
+    hash = "sha256-nw70sbiz3+dp40WP957hOVo/mQOg2MJknZNN5Kw/Q/0=";
   };
 
   buildInputs = [
diff --git a/pkgs/by-name/ci/cinnamon-desktop/package.nix b/pkgs/by-name/ci/cinnamon-desktop/package.nix
index ece170d57a4c..df1c5ad8f513 100644
--- a/pkgs/by-name/ci/cinnamon-desktop/package.nix
+++ b/pkgs/by-name/ci/cinnamon-desktop/package.nix
@@ -21,13 +21,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cinnamon-desktop";
-  version = "6.4.1";
+  version = "6.4.2";
 
   src = fetchFromGitHub {
     owner = "linuxmint";
     repo = "cinnamon-desktop";
     rev = version;
-    hash = "sha256-YKGVuT28MLcLO9T8ZJqbHqMN0SAn1P1l8JTDBo4n838=";
+    hash = "sha256-kNxVdPtCQtz4TSyCc6uKHmAGWm2nlWnLwC3Cm0E42Jc=";
   };
 
   outputs = [
diff --git a/pkgs/by-name/ci/cinnamon-session/package.nix b/pkgs/by-name/ci/cinnamon-session/package.nix
index b9b27f88c3c4..a17ef8e7c3b4 100644
--- a/pkgs/by-name/ci/cinnamon-session/package.nix
+++ b/pkgs/by-name/ci/cinnamon-session/package.nix
@@ -33,13 +33,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "cinnamon-session";
-  version = "6.4.0";
+  version = "6.4.1";
 
   src = fetchFromGitHub {
     owner = "linuxmint";
     repo = "cinnamon-session";
     rev = version;
-    hash = "sha256-4uTKcmwfEytoAy4CFiOedYJqmPtBFBHk0P1gEGgm6pU=";
+    hash = "sha256-xmKreYrdN22bz5JRkpocf+dfK7BY1Ic4F+mTax0lM3Y=";
   };
 
   buildInputs = [
diff --git a/pkgs/by-name/mu/muffin/package.nix b/pkgs/by-name/mu/muffin/package.nix
index a6e5f521e004..0844df43a89b 100644
--- a/pkgs/by-name/mu/muffin/package.nix
+++ b/pkgs/by-name/mu/muffin/package.nix
@@ -2,6 +2,7 @@
   stdenv,
   lib,
   fetchFromGitHub,
+  fetchpatch,
   replaceVars,
   cairo,
   cinnamon-desktop,
@@ -62,6 +63,13 @@ stdenv.mkDerivation rec {
     (replaceVars ./fix-paths.patch {
       inherit zenity;
     })
+
+    # Fix Qt apps crashing on wayland
+    # https://github.com/linuxmint/muffin/pull/739
+    (fetchpatch {
+      url = "https://github.com/linuxmint/muffin/commit/760e2a3046e13610c4fda1291a9a28e589d2bd93.patch";
+      hash = "sha256-D0u8UxW5USzMW9KlP3Y4XCWxrQ1ySufDv+eCbrAP71c=";
+    })
   ];
 
   nativeBuildInputs = [