diff --git a/dbbackup/utils.py b/dbbackup/utils.py
index 30aec8d3..e7cf3109 100644
--- a/dbbackup/utils.py
+++ b/dbbackup/utils.py
@@ -228,7 +228,9 @@ def get_passphrase(passphrase=passphrase):
             inputfile.seek(0)
             g = gnupg.GPG()
             result = g.decrypt_file(
-                file=inputfile, passphrase=get_passphrase(), output=temp_filename
+                fileobj_or_path=inputfile,
+                passphrase=get_passphrase(),
+                output=temp_filename,
             )
             if not result:
                 raise DecryptionError("Decryption failed; status: %s" % result.status)
diff --git a/docs/configuration.rst b/docs/configuration.rst
index a290108b..ba209eea 100644
--- a/docs/configuration.rst
+++ b/docs/configuration.rst
@@ -119,7 +119,7 @@ using GPG. ::
 Requirements:
 
 -  Install the python package python-gnupg:
-   ``pip install python-gnupg``.
+   ``pip install python-gnupg>=0.5.0``.
 -  You need a GPG key. (`GPG manual`_)
 -  Set the setting ``DBBACKUP_GPG_RECIPIENT`` to the name of the GPG key.
 
diff --git a/requirements/tests.txt b/requirements/tests.txt
index e294db57..e975d619 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -6,7 +6,7 @@ pep8
 psycopg2
 pylint
 python-dotenv
-python-gnupg
+python-gnupg>=0.5.0
 pytz
 testfixtures
 tox