diff --git a/pyproject.toml b/pyproject.toml
index a1a8ee5..559fcd0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ Issues = "https://github.com/supermihi/pytaglib/issues"
 Changelog = "https://github.com/supermihi/pytaglib/blob/main/CHANGELOG.md"
 
 [project.optional-dependencies]
-tests = ["pytest>=8.1.1,<8.3.0"]
+tests = ["pytest>=8.1.1,<8.4.0"]
 
 [project.scripts]
 pyprinttags = "pyprinttags:script"