diff --git a/testit-adapter-behave/setup.py b/testit-adapter-behave/setup.py
index 03cb2b3..c3a1c22 100644
--- a/testit-adapter-behave/setup.py
+++ b/testit-adapter-behave/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = "4.2.6rc2"
+VERSION = "4.2.6-TMS-5.7"
 
 setup(
     name='testit-adapter-behave',
diff --git a/testit-adapter-nose/setup.py b/testit-adapter-nose/setup.py
index 9916b71..dec944c 100644
--- a/testit-adapter-nose/setup.py
+++ b/testit-adapter-nose/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup, find_packages
 
-VERSION = "4.2.6rc2"
+VERSION = "4.2.6-TMS-5.7"
 
 setup(
     name='testit-adapter-nose',
diff --git a/testit-adapter-pytest/setup.py b/testit-adapter-pytest/setup.py
index 3e88aa8..5c5611a 100644
--- a/testit-adapter-pytest/setup.py
+++ b/testit-adapter-pytest/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = "4.2.6rc2"
+VERSION = "4.2.6-TMS-5.7"
 
 setup(
     name='testit-adapter-pytest',
diff --git a/testit-adapter-robotframework/setup.py b/testit-adapter-robotframework/setup.py
index e0e4a81..72b6df5 100644
--- a/testit-adapter-robotframework/setup.py
+++ b/testit-adapter-robotframework/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = "4.2.6rc2"
+VERSION = "4.2.6-TMS-5.7"
 
 setup(
     name='testit-adapter-robotframework',
diff --git a/testit-python-commons/setup.py b/testit-python-commons/setup.py
index 1038e7f..e52cd1a 100644
--- a/testit-python-commons/setup.py
+++ b/testit-python-commons/setup.py
@@ -1,6 +1,6 @@
 from setuptools import find_packages, setup
 
-VERSION = "4.2.6rc2"
+VERSION = "4.2.6-TMS-5.7"
 
 setup(
     name='testit-python-commons',
@@ -25,5 +25,5 @@
     py_modules=['testit', 'testit_python_commons'],
     packages=find_packages(where='src'),
     package_dir={'': 'src'},
-    install_requires=['pluggy', 'tomli', 'testit-api-client==7.5.10']
+    install_requires=['pluggy', 'tomli', 'testit-api-client==7.5.5.post570']
 )
diff --git a/update_versions.sh b/update_versions.sh
index 4b17ceb..028c69d 100644
--- a/update_versions.sh
+++ b/update_versions.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
-NEW_VERSION="4.2.6rc2"
-TESTIT_API_CLIENT_VERSION="7.5.10"
+NEW_VERSION="4.2.6-TMS-5.7"
+TESTIT_API_CLIENT_VERSION="7.5.5.post570"
 
 echo "Updating all adapters to version: $NEW_VERSION"
 echo "Updating testit-api-client to version: $TESTIT_API_CLIENT_VERSION"