diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4c313f9..4918b25 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.4.0"
+  ".": "1.4.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbe7ed5..c9454b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.4.1](https://github.com/googleapis/python-optimization/compare/v1.4.0...v1.4.1) (2023-03-23)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#122](https://github.com/googleapis/python-optimization/issues/122)) ([ccd6370](https://github.com/googleapis/python-optimization/commit/ccd6370332129c5692f0939601bf2e3b4678ea6d))
+
 ## [1.4.0](https://github.com/googleapis/python-optimization/compare/v1.3.2...v1.4.0) (2023-02-21)
 
 
diff --git a/google/cloud/optimization/gapic_version.py b/google/cloud/optimization/gapic_version.py
index 18c65df..dc24d9a 100644
--- a/google/cloud/optimization/gapic_version.py
+++ b/google/cloud/optimization/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.4.0"  # {x-release-please-version}
+__version__ = "1.4.1"  # {x-release-please-version}
diff --git a/google/cloud/optimization_v1/gapic_version.py b/google/cloud/optimization_v1/gapic_version.py
index 18c65df..dc24d9a 100644
--- a/google/cloud/optimization_v1/gapic_version.py
+++ b/google/cloud/optimization_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.4.0"  # {x-release-please-version}
+__version__ = "1.4.1"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.optimization.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.optimization.v1.json
index d38082d..6d95bf2 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.optimization.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.optimization.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-optimization",
-    "version": "0.1.0"
+    "version": "1.4.1"
   },
   "snippets": [
     {