diff --git a/pyproject.toml b/pyproject.toml
index c9b236ed..6dbf2fd5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ strict = [
     "FireWorks==2.0.3",
     "PyYAML==6.0.1",
     "maggma==0.56.0",
-    "matplotlib==3.7.2",
+    "matplotlib==3.8.0",
     "monty==2023.9.5",
     "moto==4.2.4",
     "networkx==3.1",