diff --git a/ds4_eval.c b/ds4_eval.c
index 23b15258..dc483a0b 100644
--- a/ds4_eval.c
+++ b/ds4_eval.c
@@ -244,12 +244,12 @@ static const eval_case eval_cases[] = {
         .answer = "16",
     },
     {
-        .source = "GPQA Diamond",
+        .source = "GPQA Diamond (modified)",
         .id = "recDytVnNYZe2HuUU",
         .domain = "Physics",
         .title = "What is the energy of the Relativistic Heavy Ion Collider (RHIC)",
         .question = "What is the energy of the Relativistic Heavy Ion Collider (RHIC) so that the speed of the nucleus X is equal to 0.96c?\n\nKnowing that X is defined as Li with 3 neutrons.\n\nPS: the precision of the energy is at 1e-4.",
-        .choice[0] = "20.132 GeV",
+        .choice[0] = "20.011 GeV",
         .choice[1] = "18.475 GeV",
         .choice[2] = "21.419",
         .choice[3] = "23.069 GeV",