diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a619655
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+
+.venv-ci/
+__pycache__/
+*.pyc
diff --git a/requirements.txt b/requirements.txt
index 7d27527..99e2e13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-matplotlib==3.5.1
+matplotlib>=3.8.4
 numpy>=1.21
 scipy>=1.10.0
 setuptools>=65.5.1