diff --git a/requirements.txt b/requirements.txt
index 7341097879c783f1be9a304a78f36d6c3c5076e8..0181f38f51a40c73f5ab2b0b2e505c9e660512dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,5 @@
 setuptools
 docopt
-os
-argparse
-importlib
-logging
-time
 matplotlib
 numpy
 bob.extension
@@ -13,3 +8,7 @@ bob.io.base
 bob.io.image
 torch >= 0.4.0
 torchvision >= 0.2.0
+argparse
+importlib
+logging
+time