diff --git a/ci/requirements.txt b/ci/requirements.txt
index 21f3df7b7a..183b59301b 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -1,4 +1,4 @@
-matplotlib==3.9.2
+matplotlib==3.9.3
 numpy==2.2.0
 pandas==2.2.3
 pooch==1.8.2