diff --git a/requirements.txt b/requirements.txt
index 413c4a167..cfd12c094 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 scipy>=1.4.1, <1.16
 pandas>1.1, <3, !=1.4.0
-matplotlib>=3.5, <3.9
+matplotlib>=3.5
 pydantic>=2
 PyYAML>=5.0.0, <6.1
 jinja2>=2.11.1, <3.2