diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 7a48e52..ed32022 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.12.0"
+  ".": "2.12.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85c23cc..cc1b1ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.12.1](https://github.com/googleapis/python-containeranalysis/compare/v2.12.0...v2.12.1) (2023-03-23)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#370](https://github.com/googleapis/python-containeranalysis/issues/370)) ([f58475d](https://github.com/googleapis/python-containeranalysis/commit/f58475d382a971eadd173e0264ea8fee460daeb5))
+
 ## [2.12.0](https://github.com/googleapis/python-containeranalysis/compare/v2.11.1...v2.12.0) (2023-02-27)
 
 
diff --git a/google/cloud/devtools/containeranalysis/gapic_version.py b/google/cloud/devtools/containeranalysis/gapic_version.py
index 16ae0e9..aa9b96f 100644
--- a/google/cloud/devtools/containeranalysis/gapic_version.py
+++ b/google/cloud/devtools/containeranalysis/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.12.0"  # {x-release-please-version}
+__version__ = "2.12.1"  # {x-release-please-version}
diff --git a/google/cloud/devtools/containeranalysis_v1/gapic_version.py b/google/cloud/devtools/containeranalysis_v1/gapic_version.py
index 16ae0e9..aa9b96f 100644
--- a/google/cloud/devtools/containeranalysis_v1/gapic_version.py
+++ b/google/cloud/devtools/containeranalysis_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.12.0"  # {x-release-please-version}
+__version__ = "2.12.1"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.devtools.containeranalysis.v1.json b/samples/generated_samples/snippet_metadata_google.devtools.containeranalysis.v1.json
index dab3e1e..eb3b1cb 100644
--- a/samples/generated_samples/snippet_metadata_google.devtools.containeranalysis.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.devtools.containeranalysis.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-containeranalysis",
-    "version": "0.1.0"
+    "version": "2.12.1"
   },
   "snippets": [
     {