diff --git a/pkgs/desktops/lomiri/services/lomiri-polkit-agent/default.nix b/pkgs/desktops/lomiri/services/lomiri-polkit-agent/default.nix
index 143ac620192a..fce7f3ec2836 100644
--- a/pkgs/desktops/lomiri/services/lomiri-polkit-agent/default.nix
+++ b/pkgs/desktops/lomiri/services/lomiri-polkit-agent/default.nix
@@ -18,22 +18,22 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "lomiri-polkit-agent";
-  version = "0.3";
+  version = "0.3.1";
 
   src = fetchFromGitLab {
     owner = "ubports";
     repo = "development/core/lomiri-polkit-agent";
     tag = finalAttrs.version;
-    hash = "sha256-3x2gwKhRDXE6tuwM7pXIwsWg/8pQrKLJ1zds8Ljtk+I=";
+    hash = "sha256-6n/NIUstXODq1fGPF6ioXOWR39kTlzKWdAdW1LbnFy0=";
   };
 
   strictDeps = true;
 
   postPatch = ''
-    # GTest needs C++17
-    # Remove when https://gitlab.com/ubports/development/core/lomiri-polkit-agent/-/merge_requests/15 merged & in release
+    # CMake 4 compat
+    # Remove when https://gitlab.com/ubports/development/core/lomiri-polkit-agent/-/commit/cb81d853ce6dd3bb11030f5a23b6a13f926779a1 in release
     substituteInPlace CMakeLists.txt \
-      --replace-fail 'std=c++14' 'std=c++17'
+      --replace-fail 'VERSION 3.5' 'VERSION 3.10'
   '';
 
   nativeBuildInputs = [