diff --git a/pyproject.toml b/pyproject.toml
index d50f1b34e..d157d537f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ classifiers = [
   "Typing :: Typed"
 ]
 dependencies = [
-  "matplotlib>=3.0.0,<4",
+  "matplotlib>=3.0.0,<3.8",
   "numpy>=1.10.0,<2",
   "pandas>1.0.0,<3",
   "polars>=0.19.0,<0.20.0",