diff --git a/pkgs/applications/networking/instant-messengers/quaternion/default.nix b/pkgs/applications/networking/instant-messengers/quaternion/default.nix
index ec6a497bde92..18b590304d8d 100644
--- a/pkgs/applications/networking/instant-messengers/quaternion/default.nix
+++ b/pkgs/applications/networking/instant-messengers/quaternion/default.nix
@@ -1,46 +1,47 @@
 { mkDerivation, stdenv, lib, fetchFromGitHub, cmake
-, qtbase, qtquickcontrols, qtkeychain, qtmultimedia, qttools
-, libqmatrixclient_0_5
-, libsecret
+, qtbase, qtquickcontrols, qtquickcontrols2, qtkeychain, qtmultimedia, qttools
+, libquotient, libsecret
 }:
 
-let
-  generic = version: sha256: prefix: library: mkDerivation {
-    pname = "quaternion";
-    inherit version;
+mkDerivation rec {
+  pname = "quaternion";
+  version = "0.0.9.4e";
 
-    src = fetchFromGitHub {
-      owner = "QMatrixClient";
-      repo  = "Quaternion";
-      rev   = "${prefix}${version}";
-      inherit sha256;
-    };
-
-    buildInputs = [ qtbase qtmultimedia qtquickcontrols qtkeychain library libsecret ];
-
-    nativeBuildInputs = [ cmake qttools ];
-
-    postInstall = if stdenv.isDarwin then ''
-      mkdir -p $out/Applications
-      mv $out/bin/quaternion.app $out/Applications
-      rmdir $out/bin || :
-    '' else ''
-      substituteInPlace $out/share/applications/quaternion.desktop \
-        --replace 'Exec=quaternion' "Exec=$out/bin/quaternion"
-    '';
-
-    meta = with lib; {
-      description = "Cross-platform desktop IM client for the Matrix protocol";
-      homepage    = "https://matrix.org/docs/projects/client/quaternion.html";
-      license     = licenses.gpl3;
-      maintainers = with maintainers; [ peterhoeg ];
-      inherit (qtbase.meta) platforms;
-      inherit version;
-    };
+  src = fetchFromGitHub {
+    owner = "QMatrixClient";
+    repo = "Quaternion";
+    rev = "${version}";
+    sha256 = "sha256-2yEiILiitRPj2hCodUDM8UNVq8crb9nyX21ebuh5EEM=";
   };
 
-in rec {
-  quaternion     = generic "0.0.9.4c"     "12mkwiqqbi4774kwl7gha72jyf0jf547acy6rw8ry249zl4lja54" "" libqmatrixclient_0_5;
+  buildInputs = [
+    qtbase
+    qtmultimedia
+    qtquickcontrols
+    qtquickcontrols2
+    qtkeychain
+    libquotient
+    libsecret
+  ];
 
-  quaternion-git = quaternion;
+  nativeBuildInputs = [ cmake qttools ];
+
+  postInstall = if stdenv.isDarwin then ''
+    mkdir -p $out/Applications
+    mv $out/bin/quaternion.app $out/Applications
+    rmdir $out/bin || :
+  '' else ''
+    substituteInPlace $out/share/applications/com.github.quaternion.desktop \
+      --replace 'Exec=quaternion' "Exec=$out/bin/quaternion"
+  '';
+
+  meta = with lib; {
+    description =
+      "Cross-platform desktop IM client for the Matrix protocol";
+    homepage = "https://matrix.org/docs/projects/client/quaternion.html";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ peterhoeg ];
+    inherit (qtbase.meta) platforms;
+    inherit version;
+  };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1fb7c2a45a5c..0628fdaad86b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1242,9 +1242,7 @@ in
 
   libquotient = libsForQt5.callPackage ../development/libraries/libquotient {};
 
-  inherit (libsForQt5.callPackage ../applications/networking/instant-messengers/quaternion { })
-    quaternion
-    quaternion-git;
+  quaternion = libsForQt5.callPackage ../applications/networking/instant-messengers/quaternion { };
 
   tensor = libsForQt5.callPackage ../applications/networking/instant-messengers/tensor { };