diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 4a0abcca..46483213 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,16 +1,16 @@
 [bumpversion]
-current_version = 3.2.0.dev0
+current_version = 4.0.0.dev0
 commit = False
 tag = False
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\.(?P<release>[a-z]+)(?P<dev>\d+))?
-serialize =
+serialize = 
 	{major}.{minor}.{patch}.{release}{dev}
 	{major}.{minor}.{patch}
 
 [bumpversion:part:release]
 optional_value = prod
 first_value = dev
-values =
+values = 
 	dev
 	prod
 
diff --git a/common/src/main/python/dlpx/virtualization/common/VERSION b/common/src/main/python/dlpx/virtualization/common/VERSION
index 745e2a57..62e24b9a 100644
--- a/common/src/main/python/dlpx/virtualization/common/VERSION
+++ b/common/src/main/python/dlpx/virtualization/common/VERSION
@@ -1 +1 @@
-3.2.0.dev0
+4.0.0.dev0
diff --git a/dvp/src/main/python/dlpx/virtualization/VERSION b/dvp/src/main/python/dlpx/virtualization/VERSION
index 745e2a57..62e24b9a 100644
--- a/dvp/src/main/python/dlpx/virtualization/VERSION
+++ b/dvp/src/main/python/dlpx/virtualization/VERSION
@@ -1 +1 @@
-3.2.0.dev0
+4.0.0.dev0
diff --git a/libs/src/main/python/dlpx/virtualization/libs/VERSION b/libs/src/main/python/dlpx/virtualization/libs/VERSION
index 745e2a57..62e24b9a 100644
--- a/libs/src/main/python/dlpx/virtualization/libs/VERSION
+++ b/libs/src/main/python/dlpx/virtualization/libs/VERSION
@@ -1 +1 @@
-3.2.0.dev0
+4.0.0.dev0
diff --git a/platform/src/main/python/dlpx/virtualization/platform/VERSION b/platform/src/main/python/dlpx/virtualization/platform/VERSION
index 745e2a57..62e24b9a 100644
--- a/platform/src/main/python/dlpx/virtualization/platform/VERSION
+++ b/platform/src/main/python/dlpx/virtualization/platform/VERSION
@@ -1 +1 @@
-3.2.0.dev0
+4.0.0.dev0
diff --git a/tools/src/main/python/dlpx/virtualization/_internal/VERSION b/tools/src/main/python/dlpx/virtualization/_internal/VERSION
index 745e2a57..62e24b9a 100644
--- a/tools/src/main/python/dlpx/virtualization/_internal/VERSION
+++ b/tools/src/main/python/dlpx/virtualization/_internal/VERSION
@@ -1 +1 @@
-3.2.0.dev0
+4.0.0.dev0
diff --git a/tools/src/test/python/dlpx/virtualization/_internal/test_package_util.py b/tools/src/test/python/dlpx/virtualization/_internal/test_package_util.py
index 143362b5..b2d67500 100644
--- a/tools/src/test/python/dlpx/virtualization/_internal/test_package_util.py
+++ b/tools/src/test/python/dlpx/virtualization/_internal/test_package_util.py
@@ -10,7 +10,7 @@
 class TestPackageUtil:
     @staticmethod
     def test_get_version():
-        assert package_util.get_version() == '3.2.0.dev0'
+        assert package_util.get_version() == '4.0.0.dev0'
 
     @staticmethod
     def test_get_virtualization_api_version():