diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d6a5f76..6db3039 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "0.8.0"
+    ".": "0.9.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 960211e..9a3dead 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [0.9.0](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.8.0...otdf-python-v0.9.0) (2026-06-30)
+
+
+### Features
+
+* **main:** update to service/v0.16.0 ([#154](https://github.com/b-long/opentdf-python-sdk/issues/154)) ([700dfb4](https://github.com/b-long/opentdf-python-sdk/commit/700dfb4d0d180a874f50adb682111cd43fd98692))
+
+
+### Bug Fixes
+
+* add 'twine check' step to CI workflows ([#163](https://github.com/b-long/opentdf-python-sdk/issues/163)) ([a1d4a5f](https://github.com/b-long/opentdf-python-sdk/commit/a1d4a5f59990e19d418e516c52db058f4dc0b7a9))
+* enable dependabot ([#157](https://github.com/b-long/opentdf-python-sdk/issues/157)) ([f6f6f95](https://github.com/b-long/opentdf-python-sdk/commit/f6f6f953d27b2ec9b0bd40b65dfca01b44846ee6))
+
 ## [0.8.0](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.7.3...otdf-python-v0.8.0) (2026-06-10)
 
 
diff --git a/packages/otdf-python-proto/pyproject.toml b/packages/otdf-python-proto/pyproject.toml
index 038f897..e0c8a30 100644
--- a/packages/otdf-python-proto/pyproject.toml
+++ b/packages/otdf-python-proto/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python-proto"
-version = "0.8.0"
+version = "0.9.0"
 description = "Generated protobuf files for OpenTDF Python SDK"
 readme = "README.md"
 authors = [
diff --git a/packages/otdf-python/pyproject.toml b/packages/otdf-python/pyproject.toml
index 6ba5f9a..f8deb60 100644
--- a/packages/otdf-python/pyproject.toml
+++ b/packages/otdf-python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python"
-version = "0.8.0"
+version = "0.9.0"
 description = "Unofficial OpenTDF SDK for Python"
 readme = "README.md"
 authors = [
diff --git a/uv.lock b/uv.lock
index 3ce995d..ccd3655 100644
--- a/uv.lock
+++ b/uv.lock
@@ -437,7 +437,7 @@ wheels = [
 
 [[package]]
 name = "otdf-python"
-version = "0.8.0"
+version = "0.9.0"
 source = { editable = "packages/otdf-python" }
 dependencies = [
     { name = "connect-python" },
@@ -486,7 +486,7 @@ dev = [
 
 [[package]]
 name = "otdf-python-proto"
-version = "0.8.0"
+version = "0.9.0"
 source = { editable = "packages/otdf-python-proto" }
 dependencies = [
     { name = "connect-python" },