diff --git a/.pylintrc b/.pylintrc
index 8fd2a13..0169a2c 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -44,7 +44,7 @@ symbols=no
 # --enable=similarities". If you want to run only the classes checker, but have
 # no Warning level messages displayed, use"--disable=all --enable=classes
 # --disable=W"
-disable=W,C,R
+disable=W,C,R,import-error
 
 
 [REPORTS]
diff --git a/requirements.txt b/requirements.txt
index cc3ea3c..1ef241d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ python-monascaclient>=1.1.0 # Apache-2.0
 python-neutronclient>=5.1.0  # Apache-2.0
 python-novaclient>=6.0.0  # Apache-2.0
 PyYAML>=3.10.0  # MIT
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config>=3.14.0,!=4.4.0,!=4.3.0  # Apache-2.0
 oslo.utils>=3.18.0                       # Apache-2.0
 oslo.log>=3.11.0  # Apache-2.0
 libvirt-python>=1.2.5                   # LGPLv2+
diff --git a/test-requirements.txt b/test-requirements.txt
index 7b925f6..585685a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,16 +1,16 @@
 # 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.
-astroid===1.3.6
+astroid==1.6.5 # LGPLv2.1
 flake8>=2.5.4,<2.6.0  # MIT
 hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 coverage>=3.6
 mock>=1.0
 pep8==1.5.7
 mccabe==0.2.1 # MIT License
-pylint==1.4.4  # GNU GPL v2
+pylint==1.9.2 # GPLv2
 pyflakes==0.8.1
 stestr>=2.0.0 # Apache-2.0
 testtools>=0.9.36
 oslosphinx>=2.5.0 # Apache-2.0
-sphinx>=1.1.2  # BSD
+sphinx>=1.1.2,!=1.6.7,!=1.6.6  # BSD