diff --git a/frads/__init__.py b/frads/__init__.py
index 2bffd9d..37bec40 100755
--- a/frads/__init__.py
+++ b/frads/__init__.py
@@ -93,7 +93,7 @@
     create_glazing_system,
 )
 
-__version__ = "1.2.8"
+__version__ = "1.2.9"
 
 logger: logging.Logger = logging.getLogger(__name__)
 
diff --git a/pyproject.toml b/pyproject.toml
index 2c47728..ac070d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ description = "Framework for lighting and energy simulations"
 dependencies = [
     "epmodel>=0.6.0",
     "numpy>=1.24.4",
-    "pyradiance >= 0.5.1",
+    "pyradiance >= 0.5.3",
     "pywincalc>=3.1.0",
     "pyenergyplus_lbnl>=23.2.0",
     "scipy>=1.10.1",