diff --git a/pyproject.toml b/pyproject.toml
index e5f634d3e5..9237e6aee3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ tests = [
     "joblib==1.3.2",
     "matplotlib==3.5.3; python_version == '3.7'",
     "matplotlib==3.7.3; python_version == '3.8'",
-    "matplotlib==3.8.0; python_version > '3.8'",
+    "matplotlib==3.8.1; python_version > '3.8'",
     "numpy==1.21.6; python_version <= '3.9'",
     "numpy==1.26.0; python_version > '3.9'",
     "mock",
@@ -72,7 +72,7 @@ doc = [
     "jupyterlab==4.0.6",
     "matplotlib==3.5.3; python_version == '3.7'",
     "matplotlib==3.7.3; python_version == '3.8'",
-    "matplotlib==3.8.0; python_version > '3.8'",
+    "matplotlib==3.8.1; python_version > '3.8'",
     "nbsphinx==0.9.3",
     "numpydoc==1.5.0; python_version == '3.7'",
     "numpydoc==1.6.0; python_version > '3.7'",
@@ -104,7 +104,7 @@ full = [
     "imageio",
     "matplotlib==3.5.3; python_version == '3.7'",
     "matplotlib==3.7.3; python_version == '3.8'",
-    "matplotlib==3.8.0; python_version > '3.8'",
+    "matplotlib==3.8.1; python_version > '3.8'",
     "numpy==1.21.6; python_version <= '3.9'",
     "numpy==1.26.0; python_version > '3.9'",
     "pandas==1.3.5; python_version == '3.7'",