diff --git a/pyplayready/__init__.py b/pyplayready/__init__.py
index 958acde..ec77f83 100644
--- a/pyplayready/__init__.py
+++ b/pyplayready/__init__.py
@@ -10,4 +10,4 @@ from .session import *
 from .xml_key import *
 from .xmrlicense import *
 
-__version__ = "0.4.1"
+__version__ = "0.4.2"
diff --git a/pyplayready/main.py b/pyplayready/main.py
index 71dc1b5..0a691f0 100644
--- a/pyplayready/main.py
+++ b/pyplayready/main.py
@@ -250,7 +250,7 @@ def reprovision_device(ctx: click.Context, prd_path: Path, output: Optional[Path
 @click.pass_context
 def export_device(ctx: click.Context, prd_path: Path, out_dir: Optional[Path] = None) -> None:
     """
-    Export a Playready Device (.prd) file to a Group Key, Encryption Key, Signing Key and Group Certificate
+    Export a Playready Device (.prd) file to a Group Key and Group Certificate
     If an output directory is not specified, it will be stored in the current working directory
     """
     if not prd_path.is_file():
@@ -274,21 +274,18 @@ def export_device(ctx: click.Context, prd_path: Path, out_dir: Optional[Path] =
 
     device = Device.load(prd_path)
 
-    log.info(f"L{device.security_level} {device.get_name()}")
+    log.info(f"SL{device.security_level} {device.get_name()}")
     log.info(f"Saving to: {out_path}")
 
     if device.group_key:
         group_key_path = out_path / "zgpriv.dat"
         group_key_path.write_bytes(device.group_key.dumps())
         log.info("Exported Group Key as zgpriv.dat")
+    else:
+        log.warning("Cannot export zgpriv.dat, as v2 devices do not save the group key")
 
-    private_key_path = out_path / "zprivencr.dat"
-    private_key_path.write_bytes(device.encryption_key.dumps())
-    log.info("Exported Encryption Key as zprivencr.dat")
-
-    private_key_path = out_path / "zprivsig.dat"
-    private_key_path.write_bytes(device.signing_key.dumps())
-    log.info("Exported Signing Key as zprivsig.dat")
+    # remove leaf cert to unprovision it
+    device.group_certificate.remove(0)
 
     client_id_path = out_path / "bgroupcert.dat"
     client_id_path.write_bytes(device.group_certificate.dumps())
diff --git a/pyproject.toml b/pyproject.toml
index 68a6a5d..054b564 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pyplayready"
-version = "0.4.1"
+version = "0.4.2"
 description = "pyplayready CDM (Content Decryption Module) implementation in Python."
 license = "CC BY-NC-ND 4.0"
 authors = ["DevLARLEY, Erevoc", "DevataDev"]