diff --git a/tensorflow_serving/model_servers/BUILD b/tensorflow_serving/model_servers/BUILD
index 0c4ca0ab2fc..af05af2878e 100644
--- a/tensorflow_serving/model_servers/BUILD
+++ b/tensorflow_serving/model_servers/BUILD
@@ -281,7 +281,7 @@ pkg_deb(
     homepage = "https://github.com/tensorflow/serving",
     maintainer = "TensorFlow Serving team",
     package = "tensorflow-model-server",
-    version = "undefined",  # Set when releasing a new version of TensorFlow Serving (e.g. 1.0.0).
+    version = "1.6.0",  # Set when releasing a new version of TensorFlow Serving (e.g. 1.0.0).
 )
 
 # Build with '-c opt'
@@ -292,5 +292,5 @@ pkg_deb(
     homepage = "https://github.com/tensorflow/serving",
     maintainer = "TensorFlow Serving team",
     package = "tensorflow-model-server-universal",
-    version = "undefined",  # Set when releasing a new version of TensorFlow Serving (e.g. 1.0.0).
+    version = "1.6.0",  # Set when releasing a new version of TensorFlow Serving (e.g. 1.0.0).
 )
diff --git a/tensorflow_serving/tools/pip_package/setup.py b/tensorflow_serving/tools/pip_package/setup.py
index fad0cff50ad..9c2bab46b98 100644
--- a/tensorflow_serving/tools/pip_package/setup.py
+++ b/tensorflow_serving/tools/pip_package/setup.py
@@ -17,10 +17,10 @@
 from setuptools import setup
 
 # Set when releasing a new version of TensorFlow Serving (e.g. 1.0.0).
-_VERSION = 'undefined'
+_VERSION = '1.6.0'
 
 REQUIRED_PACKAGES = [
-    'tensorflow>=1.2.0',
+    'tensorflow>=1.6.0',
     'grpcio>=1.0',
 ]