diff --git a/divio_cli/cli.py b/divio_cli/cli.py
index 6c09ac71..e8756362 100644
--- a/divio_cli/cli.py
+++ b/divio_cli/cli.py
@@ -14,7 +14,10 @@
 from . import exceptions
 from . import localdev
 from . import messages
-from . import crypto
+try:
+    from . import crypto
+except ImportError:
+    crypto = None
 from .localdev.utils import get_aldryn_project_settings
 from .cloud import CloudClient, get_endpoint
 from .check_system import check_requirements, check_requirements_human
@@ -484,6 +487,13 @@ def backup():
 @click.argument('destination', type=click.File('wb'))
 def backup_decrypt(key, backup, destination):
     """Decrypt a backup downloaded from Divio Cloud"""
+    if not crypto:
+        click.secho(
+            '\nPlease install the crypo extensions to use the crypto commands: '
+            'pip install divio-cli[crypto]',
+            fg='red'
+        )
+        return
     key = base64.b64decode(key.read(1024).strip())
     decryptor = crypto.StreamDecryptor(key=key)
 
diff --git a/requirements.txt b/requirements.txt
index fb84ee7b..2d06c02c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,5 @@ click
 requests
 tabulate
 six
-cryptography
 attrs
-yaml
+pyaml
diff --git a/setup.py b/setup.py
index e86bbd6f..b863946e 100644
--- a/setup.py
+++ b/setup.py
@@ -42,6 +42,11 @@
     license='BSD',
     platforms=['OS Independent'],
     install_requires=requirements,
+    extras_require={
+        'crypto': [
+            'cryptography',
+        ],
+    },
     entry_points="""
     [console_scripts]
     divio = divio_cli.cli:cli