diff --git a/pyproject.toml b/pyproject.toml
index f7ba859ad..5cf1432d0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -118,7 +118,7 @@ dev = [
     "ruff~=0.12.1",
     "setuptools~=78.1.1",
     "setuptools_scm~=8.3.1",
-    "python-dotenv~=1.1.1",
+    "python-dotenv>=1.0.1,<2.0.0",
 ]
 
 docs = [