diff --git a/fuel_agent/test-requirements.txt b/fuel_agent/test-requirements.txt
index 5577c4b23e..dc03284f26 100644
--- a/fuel_agent/test-requirements.txt
+++ b/fuel_agent/test-requirements.txt
@@ -1,5 +1,5 @@
 hacking>=0.8.0,<0.9
-mock>=1.0
+mock==1.0.1
 oslotest==1.0
 testtools>=0.9.34
 pytest>=2.7.2
diff --git a/fuel_agent_ci/test-requirements.txt b/fuel_agent_ci/test-requirements.txt
index 9e5f2e6514..2af96f5cfa 100644
--- a/fuel_agent_ci/test-requirements.txt
+++ b/fuel_agent_ci/test-requirements.txt
@@ -1,5 +1,5 @@
 hacking>=0.8.0,<0.9
-mock>=1.0
+mock==1.0.1
 oslotest==1.0
 testtools>=0.9.34
 testrepository>=0.0.18
diff --git a/fuel_upgrade_system/fuel_package_updates/test-requirements.txt b/fuel_upgrade_system/fuel_package_updates/test-requirements.txt
index 17ac1ad02f..f2891426f4 100644
--- a/fuel_upgrade_system/fuel_package_updates/test-requirements.txt
+++ b/fuel_upgrade_system/fuel_package_updates/test-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 hacking==0.10.1
-mock==1.0
+mock==1.0.1
 nose==1.1.2
 nose2==0.4.1
 nose-timer==0.2.0
diff --git a/fuel_upgrade_system/fuel_upgrade/test-requirements.txt b/fuel_upgrade_system/fuel_upgrade/test-requirements.txt
index e40ab3cb8f..aa9be825ed 100644
--- a/fuel_upgrade_system/fuel_upgrade/test-requirements.txt
+++ b/fuel_upgrade_system/fuel_upgrade/test-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 hacking==0.7
-mock==1.0
+mock==1.0.1
 nose==1.1.2
 nose2==0.4.1
 nose-timer==0.2.0
diff --git a/nailgun/test-requirements.txt b/nailgun/test-requirements.txt
index 26d905e1e6..25cfe87229 100644
--- a/nailgun/test-requirements.txt
+++ b/nailgun/test-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 hacking==0.7
-mock==1.0
+mock==1.0.1
 nose==1.1.2
 unittest2==0.5.1
 nose2==0.4.1
diff --git a/network_checker/test-requirements.txt b/network_checker/test-requirements.txt
index f7a60f8346..a48eb21fc7 100644
--- a/network_checker/test-requirements.txt
+++ b/network_checker/test-requirements.txt
@@ -1,3 +1,3 @@
 hacking==0.7
-mock>=1.0
+mock==1.0.1
 pytest
diff --git a/shotgun/test-requirements.txt b/shotgun/test-requirements.txt
index db770d46a4..68661d0485 100644
--- a/shotgun/test-requirements.txt
+++ b/shotgun/test-requirements.txt
@@ -1,5 +1,5 @@
 hacking>=0.8.0,<0.9
-mock>=1.0
+mock==1.0.1
 testrepository>=0.0.18
 unittest2
 discover
diff --git a/tasklib/test-requirements.txt b/tasklib/test-requirements.txt
index eedb3fe56b..5595517820 100644
--- a/tasklib/test-requirements.txt
+++ b/tasklib/test-requirements.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
-mock
+mock==1.0.1
 nose
-tox
\ No newline at end of file
+tox