diff --git a/tox.ini b/tox.ini
index c4e7a211f..d39b8add3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -24,14 +24,14 @@ deps =
 	py27: mock
 	pytest
 	pytest-cov
-	apache-libcloud
-	boto
-	boto3
-	dropbox
-	google-cloud-storage
-	paramiko
-	azure>=3.0.0
-	azure-storage-blob>=1.3.1
+extras =
+    azure
+    boto
+    boto3
+    dropbox
+    google
+    libcloud
+    sftp
 
 [testenv:integration]
 ignore_errors = True
@@ -50,8 +50,8 @@ setenv =
 deps =
     Django>=1.11, <1.12
     pytest-django
-    azure>=3.0.0
-	azure-storage-blob>=1.3.1
+extras =
+    azure
 
 [testenv:flake8]
 deps =