diff --git a/packages/google-cloud-service-directory/.release-please-manifest.json b/packages/google-cloud-service-directory/.release-please-manifest.json
index 099626f4fc05..7840fde9afb8 100644
--- a/packages/google-cloud-service-directory/.release-please-manifest.json
+++ b/packages/google-cloud-service-directory/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.8.0"
+  ".": "1.8.1"
 }
diff --git a/packages/google-cloud-service-directory/CHANGELOG.md b/packages/google-cloud-service-directory/CHANGELOG.md
index 740c45d5470c..a097b9118e90 100644
--- a/packages/google-cloud-service-directory/CHANGELOG.md
+++ b/packages/google-cloud-service-directory/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.8.1](https://github.com/googleapis/python-service-directory/compare/v1.8.0...v1.8.1) (2023-03-23)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#266](https://github.com/googleapis/python-service-directory/issues/266)) ([132ebdf](https://github.com/googleapis/python-service-directory/commit/132ebdfbc723cf48c3623d89ade48ce0c4f03666))
+
 ## [1.8.0](https://github.com/googleapis/python-service-directory/compare/v1.7.1...v1.8.0) (2023-02-28)
 
 
diff --git a/packages/google-cloud-service-directory/google/cloud/servicedirectory/gapic_version.py b/packages/google-cloud-service-directory/google/cloud/servicedirectory/gapic_version.py
index b334dccf50ad..90e02933f3a4 100644
--- a/packages/google-cloud-service-directory/google/cloud/servicedirectory/gapic_version.py
+++ b/packages/google-cloud-service-directory/google/cloud/servicedirectory/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.0"  # {x-release-please-version}
+__version__ = "1.8.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1/gapic_version.py b/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1/gapic_version.py
index b334dccf50ad..90e02933f3a4 100644
--- a/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1/gapic_version.py
+++ b/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.0"  # {x-release-please-version}
+__version__ = "1.8.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1beta1/gapic_version.py b/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1beta1/gapic_version.py
index b334dccf50ad..90e02933f3a4 100644
--- a/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1beta1/gapic_version.py
+++ b/packages/google-cloud-service-directory/google/cloud/servicedirectory_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.0"  # {x-release-please-version}
+__version__ = "1.8.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1.json b/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1.json
index a0b20f7bef18..6e1a64585c79 100644
--- a/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1.json
+++ b/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-service-directory",
-    "version": "0.1.0"
+    "version": "1.8.1"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1beta1.json b/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1beta1.json
index 8cb020ecf895..00b7f794df49 100644
--- a/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1beta1.json
+++ b/packages/google-cloud-service-directory/samples/generated_samples/snippet_metadata_google.cloud.servicedirectory.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-service-directory",
-    "version": "0.1.0"
+    "version": "1.8.1"
   },
   "snippets": [
     {