diff --git a/pkgs/by-name/ta/taskwarrior2/package.nix b/pkgs/by-name/ta/taskwarrior2/package.nix
index db6eed2e2081..91e801cc0bb9 100644
--- a/pkgs/by-name/ta/taskwarrior2/package.nix
+++ b/pkgs/by-name/ta/taskwarrior2/package.nix
@@ -35,6 +35,11 @@ stdenv.mkDerivation rec {
     installShellFiles
   ];
 
+  cmakeFlags = [
+    # Fix build with cmake>=4
+    "-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
+  ];
+
   doCheck = true;
   preCheck = ''
     patchShebangs --build test