diff --git a/entity/config_loader.py b/entity/config_loader.py
index 6b9db227dd..01f532089e 100755
--- a/entity/config_loader.py
+++ b/entity/config_loader.py
@@ -27,7 +27,7 @@ def load_design_from_mapping(data: Mapping[str, Any], *, source: str | None = No
 def load_design_from_file(path: Path) -> DesignConfig:
     """Read a YAML file and parse it into a :class:`DesignConfig`."""
     with path.open("r", encoding="utf-8") as handle:
-        data = yaml.load(handle, Loader=yaml.FullLoader)
+        data = yaml.safe_load(handle)
     if not isinstance(data, Mapping):
         raise ConfigError("YAML root must be a mapping", path=str(path))
     return load_design_from_mapping(data, source=str(path))
diff --git a/utils/io_utils.py b/utils/io_utils.py
index c414bf7b0b..9944660ca0 100755
--- a/utils/io_utils.py
+++ b/utils/io_utils.py
@@ -3,4 +3,4 @@
 
 def read_yaml(path) -> Dict[str, Any]:
     with open(path, mode="r", encoding="utf-8") as f:
-        return yaml.load(f, Loader=yaml.FullLoader)
\ No newline at end of file
+        return yaml.safe_load(f)
\ No newline at end of file