diff --git a/pyproject.toml b/pyproject.toml
index d67ec4c..52a2d45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ classifiers = [
 ]
 dependencies = [
     "httpx>=0.27.2",
-    "phonenumbers>=8.13.47,<9.0.0",
+    "phonenumbers>=8.13.47,<10.0.0",
     "pydantic>=2.9.0,<3.0.0",
     "typing-extensions>=4.12.2,<5.0.0",
 ]