diff --git a/pyproject.toml b/pyproject.toml
index bf0b619..f1563dc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ black = {version = "^23.3.0", optional = true}
 mypy = {version = "^1.2.0", optional = true}
 pre-commit = {version = "^3.2.2", optional = true}
 pyfakefs = {version = "^5.2.2", optional = true}
-pyinstaller = {version = "^5.10.1", optional = true}
+pyinstaller = {version = ">=5.10.1,<7.0.0", optional = true}
 pytest = {version = "^7.3.1", optional = true}
 pytest-cache = {version = "^1.0", optional = true}
 pytest-cov = {version = "^4.0.0", optional = true}