diff --git a/pyproject.toml b/pyproject.toml
index f03d2e36..ce9b89d7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ dependencies = [
   "psutil (>=6.1.1,<8.0.0)",
   "tenacity (>=9.0.0,<10.0.0)",
   "typing-extensions (>=4.12.2,<5.0.0) ; python_version < \"3.11\"",
-  "deepmerge (>=2.0,<3.0)",
+  "deepmerge (>=2.0,<4.0)",
   "geocoder (>=1.38.1,<2.0.0)",
   "pydantic-extra-types (>=2.10.5,<3.0.0)",
   "pyyaml (>=6.0.2,<7.0.0)",