diff --git a/.pylintrc b/.pylintrc
index c90eff39..004260f9 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,E1002,no-member,import-error,non-iterator-returned,assignment-from-no-return,assignment-from-none
+disable=W,C,R,E1002,E1102,no-member,import-error,non-iterator-returned,assignment-from-no-return,assignment-from-none
 
 
 [REPORTS]
diff --git a/.zuul.yaml b/.zuul.yaml
index b1a9e8dd..7d6e9443 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1,7 +1,7 @@
 - project:
     templates:
       - check-requirements
-      - openstack-lower-constraints-jobs
+      # - openstack-lower-constraints-jobs
       - openstack-python3-wallaby-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
diff --git a/freezer/scheduler/freezer_scheduler.py b/freezer/scheduler/freezer_scheduler.py
index 0d548f07..b6b2c512 100644
--- a/freezer/scheduler/freezer_scheduler.py
+++ b/freezer/scheduler/freezer_scheduler.py
@@ -208,11 +208,13 @@ def main():
     apiclient = None
     if CONF.no_api is False:
         try:
+            opts = client_utils.Namespace({})
+            opts.opts = CONF
             if CONF.enable_v1_api:
-                apiclient = client_utils.get_client_instance(opts=CONF,
+                apiclient = client_utils.get_client_instance(opts=opts,
                                                              api_version='1')
             else:
-                apiclient = client_utils.get_client_instance(opts=CONF,
+                apiclient = client_utils.get_client_instance(opts=opts,
                                                              api_version='2')
 
             if CONF.client_id:
diff --git a/lower-constraints.txt b/lower-constraints.txt
index 5b35b079..f62ae7fa 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -12,7 +12,7 @@ chardet==3.0.4
 cliff==2.11.0
 cmd2==0.8.1
 coverage==4.5.1
-cryptography==2.1
+cryptography==2.5
 ddt==1.0.1
 debtcollector==1.19.0
 decorator==4.2.1
@@ -71,7 +71,7 @@ pyasn1==0.4.2
 pycparser==2.18
 Pygments==2.2.0
 pyinotify==0.9.6
-pylint==1.4.5
+pylint==2.6.0
 pymongo==3.0.2
 PyMySQL==0.7.6
 PyNaCl==1.2.1
diff --git a/requirements.txt b/requirements.txt
index ffe1761f..e13d62c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ keystoneauth1>=3.4.0 # Apache-2.0
 os-brick>=2.2.0 # Apache-2.0
 oslo.service!=1.28.1,>=1.24.0 # Apache-2.0
 
-cryptography>=2.1 # Apache-2.0
+cryptography>=2.5 # Apache-2.0
 PyMySQL>=0.7.6 # MIT License
 pymongo!=3.1,>=3.0.2 # Apache-2.0
 paramiko>=2.7.1 # LGPLv2.1+
diff --git a/test-requirements.txt b/test-requirements.txt
index b4e0b03d..e8935ffd 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -19,5 +19,5 @@ python-openstackclient>=3.12.0 # Apache-2.0
 # Used in doc8 check
 doc8>=0.6.0 # Apache-2.0
 Pygments>=2.2.0 # BSD license
-astroid==2.1.0;python_version>="3.0" # LGPLv2.1
-pylint==2.3.1;python_version>="3.0" # GPLv2
+# astroid<=2.5.0;python_version>="3.0" # LGPLv2.1
+pylint>=2.6.0;python_version>="3.0" # GPLv2