diff --git a/package_manager/__init__.py b/package_manager/__init__.py
index e9ae92a..7959d0d 100644
--- a/package_manager/__init__.py
+++ b/package_manager/__init__.py
@@ -17,12 +17,23 @@ import logging
 log = logging.getLogger(__name__)
 
 if 'bpy' in locals():
-    import importlib
+    from importlib import reload
 
-    log.debug("Reloading")
-    subproc = importlib.reload(subproc)
-    bpkg = importlib.reload(bpkg)
+    def recursive_reload(mod):
+        """Reloads the given module and all its submodules"""
+        log.debug("Reloading %s", mod)
+        from types import ModuleType
+        reloaded_mod = reload(mod)
+        for attr in [getattr(mod, attr_name) for attr_name in dir(mod)]:
+            if type(attr) is ModuleType and attr.__name__.startswith(mod.__name__):
+                recursive_reload(attr)
+        return reloaded_mod
+
+    subproc = recursive_reload(subproc)
+    utils = recursive_reload(utils)
+    bpkg = recursive_reload(bpkg)
     Package = bpkg.Package
+
 else:
     from . import subproc
     from . import bpkg