diff --git a/requirements.txt b/requirements.txt
index 1b17f62..47c01c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # 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.
-pbr>=1.6 # Apache-2.0
+pbr>=1.8 # Apache-2.0
 dib-utils # Apache-2.0
 psutil<2.0.0,>=1.1.1 # BSD
diff --git a/test-requirements.txt b/test-requirements.txt
index c532b25..85a9780 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 hacking<0.10,>=0.9.2
 
 Babel>=2.3.4 # BSD
-coverage>=3.6 # Apache-2.0
+coverage>=4.0 # Apache-2.0
 discover # BSD
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0 # BSD