diff --git a/pyproject.toml b/pyproject.toml
index 10be29f..d47b6ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,10 +31,10 @@ dependencies = [
 
 [project.optional-dependencies]
 test = [
-    "matplotlib==3.10.8",
+    "matplotlib==3.10.9",
     "pytest-cov==7.1.0",
-    "pytest-mpl==0.18.0",
-    "pytest==9.0.2",
+    "pytest-mpl==0.19.0",
+    "pytest==9.1.1",
 ]
 
 [project.urls]