diff --git a/dwd_global_rad_api_server/config.yaml b/dwd_global_rad_api_server/config.yaml
index e19e5da..c02f354 100644
--- a/dwd_global_rad_api_server/config.yaml
+++ b/dwd_global_rad_api_server/config.yaml
@@ -1,6 +1,6 @@
 # https://developers.home-assistant.io/docs/add-ons/configuration#add-on-config
 name: DWD Global Rad Api Server
-version: "1.4.8"
+version: "1.4.9"
 slug: dwd_global_rad_api_server
 description: DWD Global Rad Api Server
 arch:
diff --git a/dwd_global_rad_api_server/requirements.txt b/dwd_global_rad_api_server/requirements.txt
index 53cd485..de6832e 100644
--- a/dwd_global_rad_api_server/requirements.txt
+++ b/dwd_global_rad_api_server/requirements.txt
@@ -1,8 +1,8 @@
 matplotlib
 cartopy
-numpy
+numpy==1.26.4
 xarray
-netCDF4
+netCDF4==1.6.5
 flask
 requests
 dwd_global_radiation