diff --git a/requirements.txt b/requirements.txt
index cab655ca..d6cbd9cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 astropy==6.0.1
-matplotlib==3.8.4
+matplotlib==3.9.0
 numpy==1.26.4
 scipy==1.13.0