diff --git a/plugins/Toolbox/src/Toolbox.py b/plugins/Toolbox/src/Toolbox.py
index 1b2d0f5cfc..2a168fc963 100644
--- a/plugins/Toolbox/src/Toolbox.py
+++ b/plugins/Toolbox/src/Toolbox.py
@@ -18,7 +18,7 @@ from UM.Extension import Extension
 from UM.i18n import i18nCatalog
 from UM.Version import Version
 
-import cura.CuraVersion
+import cura
 from cura.CuraApplication import CuraApplication
 from .AuthorsModel import AuthorsModel
 from .PackagesModel import PackagesModel
@@ -35,7 +35,15 @@ class Toolbox(QObject, Extension):
         self._application = Application.getInstance()
         self._package_manager = None
         self._plugin_registry = Application.getInstance().getPluginRegistry()
-        self._packages_version = cura.CuraVersion.CuraPackagesVersion if hasattr(cura.CuraVersion, "CuraPackagesVersion") else self._plugin_registry.APIVersion # type:ignore
+
+        if hasattr(cura, "CuraVersion"):
+            if hasattr(cura.CuraVersion, "CuraPackagesVersion"):
+                self._packages_version = cura.CuraVersion.CuraPackagesVersion
+            else:
+                self._packages_version = self._plugin_registry.APIVersion
+        else:
+            self._packages_version = self._plugin_registry.APIVersion
+
         self._api_version = 1
         self._api_url = "https://api-staging.ultimaker.com/cura-packages/v{api_version}/cura/v{package_version}".format( api_version = self._api_version, package_version = self._packages_version)