diff --git a/requirements.txt b/requirements.txt
index 0837de3..f37aede 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,4 +19,4 @@ shap>=0.52.0           # SHAP values — feature attribution & bias auditing
 fairlearn>=0.14.0      # MetricFrame, equalized odds, demographic parity ratio
 
 # ── Visualisation ─────────────────────────────────────────────────────────
-matplotlib>=3.10.9     # Bias bar charts, fairness trade-off plots
+matplotlib>=3.11.0     # Bias bar charts, fairness trade-off plots