diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 44204dd..627fb5f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "1.9.0"
+    ".": "1.9.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6490d8c..e155dfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-resource-manager/#history
 
+## [1.9.1](https://github.com/googleapis/python-resource-manager/compare/v1.9.0...v1.9.1) (2023-03-23)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#266](https://github.com/googleapis/python-resource-manager/issues/266)) ([a6d7aeb](https://github.com/googleapis/python-resource-manager/commit/a6d7aeb773604445d39b85ea94cca73aa1da97e5))
+
 ## [1.9.0](https://github.com/googleapis/python-resource-manager/compare/v1.8.1...v1.9.0) (2023-02-28)
 
 
diff --git a/google/cloud/resourcemanager/gapic_version.py b/google/cloud/resourcemanager/gapic_version.py
index 163d151..13f1b4a 100644
--- a/google/cloud/resourcemanager/gapic_version.py
+++ b/google/cloud/resourcemanager/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.9.0"  # {x-release-please-version}
+__version__ = "1.9.1"  # {x-release-please-version}
diff --git a/google/cloud/resourcemanager_v3/gapic_version.py b/google/cloud/resourcemanager_v3/gapic_version.py
index 163d151..13f1b4a 100644
--- a/google/cloud/resourcemanager_v3/gapic_version.py
+++ b/google/cloud/resourcemanager_v3/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.9.0"  # {x-release-please-version}
+__version__ = "1.9.1"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.resourcemanager.v3.json b/samples/generated_samples/snippet_metadata_google.cloud.resourcemanager.v3.json
index bd24c8e..edd5397 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.resourcemanager.v3.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.resourcemanager.v3.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-resource-manager",
-    "version": "0.1.0"
+    "version": "1.9.1"
   },
   "snippets": [
     {