diff --git a/recopytex/dashboard/exam.py b/recopytex/dashboard/exam.py
index ff001e2..3f69152 100644
--- a/recopytex/dashboard/exam.py
+++ b/recopytex/dashboard/exam.py
@@ -237,7 +237,9 @@ def update_final_scores_hist(data):
         return [{}]
 
     ranges = np.linspace(
-        0, assessment_scores.Bareme.max(), int(assessment_scores.Bareme.max() * 2 + 1)
+        -0.5,
+        assessment_scores.Bareme.max(),
+        int(assessment_scores.Bareme.max() * 2 + 2),
     )
     bins = pd.cut(assessment_scores["Note"], ranges)
     assessment_scores["Bin"] = bins