diff --git a/dev-requirements.txt b/dev-requirements.txt
index 8272e4c5..e75f4557 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -6,7 +6,7 @@
 #
 -e .
 asn1crypto==0.24.0
-astroid==1.6.4
+astroid==1.6.5
 backports.functools-lru-cache==1.5
 bandit==1.4.0
 cffi==1.11.5
@@ -16,17 +16,17 @@ cryptography==2.2.2
 enum34==1.1.6
 gitdb2==2.0.3
 gitpython==2.1.10
-idna==2.6
+idna==2.7
 ipaddress==1.0.21
 iso8601==0.1.12
 isort==4.3.4
 lazy-object-proxy==1.3.1
 mccabe==0.6.1
-pbr==4.0.3
+pbr==4.0.4
 pluggy==0.6.0
 py==1.5.3
 pycparser==2.18
-pylint==1.9.1
+pylint==1.9.2
 pynacl==1.2.1
 pyyaml==3.12
 securesystemslib[crypto,pynacl]==0.11.2