diff --git a/pkgs/desktops/lomiri/development/libusermetrics/default.nix b/pkgs/desktops/lomiri/development/libusermetrics/default.nix
index 351900af7f13..a8588bd1760f 100644
--- a/pkgs/desktops/lomiri/development/libusermetrics/default.nix
+++ b/pkgs/desktops/lomiri/development/libusermetrics/default.nix
@@ -1,12 +1,14 @@
 { stdenv
 , lib
 , fetchFromGitLab
+, fetchpatch
 , gitUpdater
 , testers
 , cmake
 , cmake-extras
 , dbus
 , doxygen
+, glibcLocales
 , gsettings-qt
 , gtest
 , intltool
@@ -25,13 +27,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libusermetrics";
-  version = "1.3.2";
+  version = "1.3.3";
 
   src = fetchFromGitLab {
     owner = "ubports";
     repo = "development/core/libusermetrics";
     rev = finalAttrs.version;
-    hash = "sha256-jmJH5vByBnBqgQfyb7HNVe+eS/jHcU64R2dnvuLbqss=";
+    hash = "sha256-V4vxNyHMs2YYBILkpco79FN9xnooULgB+z2Kf3V0790=";
   };
 
   outputs = [
@@ -41,21 +43,21 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   patches = [
-    # Not submitted yet, waiting for decision on how CMake testing should be handled
-    ./2001-Remove-custom-check-target.patch
-
-    # Due to https://gitlab.com/ubports/development/core/libusermetrics/-/issues/8, we require knowledge about AppArmor availability at launch time
-    # Custom patch to launch a module-defined service that can handle this
-    ./2002-Launch-module-created-systemd-service.patch
+    # Remove when https://gitlab.com/ubports/development/core/libusermetrics/-/merge_requests/17 merged & in release
+    (fetchpatch {
+      name = "0001-libusermetrics-BUILD_TESTING.patch";
+      url = "https://gitlab.com/ubports/development/core/libusermetrics/-/commit/c1e4847601cc4522034a766755ce491d48132d77.patch";
+      hash = "sha256-UWc9/ngpuiSm0Rd6eBK/R3N/NwDRtMxie78seN3+y/8=";
+    })
   ];
 
   postPatch = ''
     # Tries to query QMake for QT_INSTALL_QML variable, would return broken paths into /build/qtbase-<commit> even if qmake was available
     substituteInPlace src/modules/UserMetrics/CMakeLists.txt \
-      --replace 'query_qmake(QT_INSTALL_QML QT_IMPORTS_DIR)' 'set(QT_IMPORTS_DIR "''${CMAKE_INSTALL_PREFIX}/${qtbase.qtQmlPrefix}")'
+      --replace-fail 'query_qmake(QT_INSTALL_QML QT_IMPORTS_DIR)' 'set(QT_IMPORTS_DIR "''${CMAKE_INSTALL_PREFIX}/${qtbase.qtQmlPrefix}")'
 
     substituteInPlace doc/CMakeLists.txt \
-      --replace "\''${CMAKE_INSTALL_DATAROOTDIR}/doc/libusermetrics-doc" "\''${CMAKE_INSTALL_DOCDIR}"
+      --replace-fail "\''${CMAKE_INSTALL_FULL_DATAROOTDIR}/doc/libusermetrics-doc" "\''${CMAKE_INSTALL_DOCDIR}"
   '';
 
   strictDeps = true;
@@ -82,8 +84,12 @@ stdenv.mkDerivation (finalAttrs: {
     qtbase
   ];
 
+  # Tests need to be able to check locale
+  LC_ALL = lib.optionalString finalAttrs.finalPackage.doCheck "en_US.UTF-8";
+
   nativeCheckInputs = [
     dbus
+    glibcLocales
   ];
 
   checkInputs = [
@@ -96,14 +102,6 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "GSETTINGS_LOCALINSTALL" true)
     (lib.cmakeBool "GSETTINGS_COMPILE" true)
     (lib.cmakeBool "ENABLE_CLICK" true)
-    (lib.cmakeBool "ENABLE_TESTS" finalAttrs.finalPackage.doCheck)
-    (lib.cmakeFeature "CMAKE_CTEST_ARGUMENTS" (lib.concatStringsSep ";" [
-      # Exclude tests
-      "-E" (lib.strings.escapeShellArg "(${lib.concatStringsSep "|" [
-        # Flaky, randomly failing in UserMetricsImplTest.AddTranslatedData (data not ready when signal is emitted?)
-        "^usermetricsoutput-unit-tests"
-      ]})")
-    ]))
   ];
 
   doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
@@ -118,13 +116,13 @@ stdenv.mkDerivation (finalAttrs: {
     updateScript = gitUpdater { };
   };
 
-  meta = with lib; {
+  meta = {
     description = "Enables apps to locally store interesting numerical data for later presentation";
     homepage = "https://gitlab.com/ubports/development/core/libusermetrics";
     changelog = "https://gitlab.com/ubports/development/core/libusermetrics/-/blob/${finalAttrs.version}/ChangeLog";
-    license = licenses.lgpl3Only;
-    maintainers = teams.lomiri.members;
-    platforms = platforms.linux;
+    license = lib.licenses.lgpl3Only;
+    maintainers = lib.teams.lomiri.members;
+    platforms = lib.platforms.linux;
     mainProgram = "usermetricsinput";
     pkgConfigModules = [
       "libusermetricsinput-1"