diff --git a/dev-requirements.txt b/dev-requirements.txt
index 70d17bff..59a2cebe 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -6,7 +6,7 @@
 #
 -e .
 asn1crypto==0.24.0
-astroid==1.6.3
+astroid==1.6.4
 backports.functools-lru-cache==1.5
 bandit==1.4.0
 cffi==1.11.5
@@ -22,11 +22,11 @@ iso8601==0.1.12
 isort==4.3.4
 lazy-object-proxy==1.3.1
 mccabe==0.6.1
-pbr==4.0.2
+pbr==4.0.3
 pluggy==0.6.0
 py==1.5.3
 pycparser==2.18
-pylint==1.8.4
+pylint==1.9.1
 pynacl==1.2.1
 pyyaml==3.12
 securesystemslib==0.11.1