diff --git a/upper-constraints.txt b/upper-constraints.txt
index cd335f55dc..8f6c964e7e 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -65,7 +65,7 @@ appdirs===1.4.0
 argcomplete===1.1.1
 argh===0.26.2
 astroid===1.3.8
-attrs===15.2.0
+attrs===16.0.0
 autobahn===0.14.0
 automaton===1.2.0
 backports-abc===0.4
@@ -234,10 +234,10 @@ paramiko===2.0.0
 passlib===1.6.5
 pathlib===1.0.1;python_version=='2.7'
 pathtools===0.1.2
-pbr===1.9.1
+pbr===1.10.0
 pecan===1.0.5
 pexpect===4.1.0
-pifpaf===0.3.0
+pifpaf===0.4.0
 pika===0.10.0
 pika-pool===0.1.3
 ply===3.8