diff --git a/pyproject.toml b/pyproject.toml
index 8837c7f95..e92e8aca6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,7 +92,7 @@ dependencies = [
     "sortedcontainers>=2.4.0",
     "stevedore>=5.0.0,<6.0.0",
     "structlog>=21.5.0",
-    "tzlocal>=2.1,<5.0",
+    "tzlocal>=2.1,<6.0",
 ]
 dynamic = ["version"]