diff --git a/requirements-lock.txt b/requirements-lock.txt
index edd8d1b..151b314 100644
--- a/requirements-lock.txt
+++ b/requirements-lock.txt
@@ -3,7 +3,7 @@
 #
 # Core experiment dependencies (no GPU required):
 numpy==2.4.6
-matplotlib==3.10.9
+matplotlib==3.11.0
 scipy==1.17.1
 pytest==9.0.3
 reportlab==4.5.1