diff --git a/requirements.txt b/requirements.txt
index a0a06bce..0b2e3aa0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-Babel>=1.3
-argparse
+Babel>=1.3 # BSD
+argparse # PSF
 dib-utils # Apache-2.0
-PyYAML>=3.1.0
-flake8<=2.4.1,>=2.2.4
-six>=1.9.0
+PyYAML>=3.1.0 # MIT
+flake8<=2.4.1,>=2.2.4 # MIT
+six>=1.9.0 # MIT
diff --git a/test-requirements.txt b/test-requirements.txt
index 7fd7e2bc..ca5a5376 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,10 +3,10 @@
 # process, which may cause wedges in the gate later.
 hacking<0.11,>=0.10.0
 
-discover
+discover # BSD
 oslotest>=1.10.0 # Apache-2.0
-testrepository>=0.0.18
+testrepository>=0.0.18 # Apache-2.0/BSD
 
 # Doc requirements
-sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
+sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0