diff --git a/tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditEventRepositoryTests.cs b/tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditEventRepositoryTests.cs
index 4420348..c637aa6 100644
--- a/tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditEventRepositoryTests.cs
+++ b/tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditEventRepositoryTests.cs
@@ -129,7 +129,10 @@ public sealed class AuditEventRepositoryTests : IAsyncLifetime
     [Fact]
     public async Task QueryAsync_Limit_EmitsCursor_WhenMoreRowsAvailable()
     {
-        var t0 = DateTime.UtcNow.AddMinutes(-10);
+        // Determinístico: DATETIME2(3) + cursor roundtrip via "O" format puede perder ticks
+        // sub-ms de `DateTime.UtcNow` (observado ~37% flake rate, cursor vuelve como parentesis
+        // de la página anterior). Timestamp fijo con sub-ms = 0 elimina la ambigüedad.
+        var t0 = new DateTime(2026, 4, 19, 12, 0, 0, DateTimeKind.Utc);
         await Seed(5, t0);
 
         var page1 = await _repo.QueryAsync(new AuditEventFilter(null, null, null, null, null, null, Limit: 2));