diff --git a/build/package_configs/ubuntu1404/icehouse/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/icehouse/depends_contrail_thirdparty_packages.cfg
index f054ddc7a..7f307a0d1 100644
--- a/build/package_configs/ubuntu1404/icehouse/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/icehouse/depends_contrail_thirdparty_packages.cfg
@@ -63,9 +63,9 @@ md5            = d29d2a9f3ff8710e89b9a09bd26494d1
 file           = python-backports.ssl-match-hostname_3.4.0.2-1contrail1_all.deb
 md5            = 243c920a5c91d12801c525f3dcd2a6d1
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1404/juno/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/juno/depends_contrail_thirdparty_packages.cfg
index 4946fb343..cd0b9543b 100644
--- a/build/package_configs/ubuntu1404/juno/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/juno/depends_contrail_thirdparty_packages.cfg
@@ -91,10 +91,10 @@ file           = python-cassandra-driver_3.0.0-0contrail3_amd64.deb
 md5            = dbedcd22c6dd20436b56e8fdb0b3983f
 source         = repo:contrail-thirdparty
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1404/kilo/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/kilo/depends_contrail_thirdparty_packages.cfg
index 07907ff01..84e6a4486 100644
--- a/build/package_configs/ubuntu1404/kilo/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/kilo/depends_contrail_thirdparty_packages.cfg
@@ -102,10 +102,10 @@ file           = python-cassandra-driver_3.0.0-0contrail3_amd64.deb
 md5            = dbedcd22c6dd20436b56e8fdb0b3983f
 source         = repo:contrail-thirdparty
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1404/liberty/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/liberty/depends_contrail_thirdparty_packages.cfg
index 0c2c152d6..7112f7e88 100644
--- a/build/package_configs/ubuntu1404/liberty/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/liberty/depends_contrail_thirdparty_packages.cfg
@@ -102,10 +102,10 @@ file           = python-cassandra-driver_3.0.0-0contrail1_amd64.deb
 md5            = 70a9176db6b07f0f7f93a24fff1fa6dc
 source         = repo:contrail-thirdparty
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1404/mitaka/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/mitaka/depends_contrail_thirdparty_packages.cfg
index cd057819b..bb6d6f7f8 100644
--- a/build/package_configs/ubuntu1404/mitaka/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/mitaka/depends_contrail_thirdparty_packages.cfg
@@ -160,10 +160,10 @@ file           = python-cassandra-driver_3.0.0-0contrail1_amd64.deb
 md5            = 70a9176db6b07f0f7f93a24fff1fa6dc
 source         = repo:contrail-thirdparty/
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty/
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1404/vcenter/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1404/vcenter/depends_contrail_thirdparty_packages.cfg
index 557ca28f0..3712c6463 100644
--- a/build/package_configs/ubuntu1404/vcenter/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1404/vcenter/depends_contrail_thirdparty_packages.cfg
@@ -59,9 +59,9 @@ md5            = 243c920a5c91d12801c525f3dcd2a6d1
 file           = python-cassandra-driver_3.0.0-0contrail3_amd64.deb
 md5            = dbedcd22c6dd20436b56e8fdb0b3983f
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
 
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
diff --git a/build/package_configs/ubuntu1604/mitaka/depends_contrail_dependent_packages.cfg b/build/package_configs/ubuntu1604/mitaka/depends_contrail_dependent_packages.cfg
index 8182d1e1e..a4497fb15 100644
--- a/build/package_configs/ubuntu1604/mitaka/depends_contrail_dependent_packages.cfg
+++ b/build/package_configs/ubuntu1604/mitaka/depends_contrail_dependent_packages.cfg
@@ -663,6 +663,11 @@ file           = powermgmt-base_1.31+nmu1_all.deb
 md5            = df9475fe6e2c439ac4bc0af720e8cdfe
 source         = repo:xenial/main/
 
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial/main/
+
 [python-libvirt_1.3.1-1ubuntu1]
 file           = python-libvirt_1.3.1-1ubuntu1_amd64.deb
 md5            = 975bc94b7b8694f9ef40ad10de5c443c
diff --git a/build/package_configs/ubuntu1604/mitaka/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1604/mitaka/depends_contrail_thirdparty_packages.cfg
index 1bb3a796b..fbdd31c4b 100644
--- a/build/package_configs/ubuntu1604/mitaka/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1604/mitaka/depends_contrail_thirdparty_packages.cfg
@@ -186,11 +186,6 @@ file           = python-cassandra-driver_3.0.0-0contrail1_amd64.deb
 md5            = 70a9176db6b07f0f7f93a24fff1fa6dc
 source         = repo:contrail-thirdparty/
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty/
-
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
 md5            = 6ba90f706ec78584adb3a15657f290e3
diff --git a/build/package_configs/ubuntu1604/newton/depends_contrail_dependent_packages.cfg b/build/package_configs/ubuntu1604/newton/depends_contrail_dependent_packages.cfg
index baf17096c..be4ebba65 100644
--- a/build/package_configs/ubuntu1604/newton/depends_contrail_dependent_packages.cfg
+++ b/build/package_configs/ubuntu1604/newton/depends_contrail_dependent_packages.cfg
@@ -1054,6 +1054,11 @@ file           = python-castellan_0.4.0-1_all.deb
 md5            = b0202fbdce87bd0eb051e8901d841aa1
 source         = repo:xenial/main/
 
+[python-certifi_2015.11.20.1-2]
+file           = python-certifi_2015.11.20.1-2_all.deb
+md5            = 760985befd8570b30f5ae928862fa8ff
+source         = repo:xenial/main/
+
 [python-chardet_2.3.0-2]
 file           = python-chardet_2.3.0-2_all.deb
 md5            = e4f1558b376066ea2a2fc32da122bc05
diff --git a/build/package_configs/ubuntu1604/newton/depends_contrail_thirdparty_packages.cfg b/build/package_configs/ubuntu1604/newton/depends_contrail_thirdparty_packages.cfg
index fd329ca52..1d21f8a44 100644
--- a/build/package_configs/ubuntu1604/newton/depends_contrail_thirdparty_packages.cfg
+++ b/build/package_configs/ubuntu1604/newton/depends_contrail_thirdparty_packages.cfg
@@ -178,11 +178,6 @@ file           = python-cassandra-driver_3.0.0-0contrail1_amd64.deb
 md5            = 70a9176db6b07f0f7f93a24fff1fa6dc
 source         = repo:contrail-thirdparty/
 
-[python-certifi_1.0.1-1contrail1]
-file           = python-certifi_1.0.1-1contrail1_all.deb
-md5            = 46ab19b4096c653c10854f5c5e735f1c
-source         = repo:contrail-thirdparty/
-
 [python-consistent-hash_1.0-0contrail1]
 file           = python-consistent-hash_1.0-0contrail1_amd64.deb
 md5            = 6ba90f706ec78584adb3a15657f290e3