diff --git a/packages/google-cloud-vision/.release-please-manifest.json b/packages/google-cloud-vision/.release-please-manifest.json
index 5af4e6d534fd..82498f8e8b3c 100644
--- a/packages/google-cloud-vision/.release-please-manifest.json
+++ b/packages/google-cloud-vision/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
-    ".": "3.4.0"
+    ".": "3.4.1"
 }
   
\ No newline at end of file
diff --git a/packages/google-cloud-vision/CHANGELOG.md b/packages/google-cloud-vision/CHANGELOG.md
index 5a4cb1ea6341..072d63b0ea9b 100644
--- a/packages/google-cloud-vision/CHANGELOG.md
+++ b/packages/google-cloud-vision/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-vision/#history
 
+## [3.4.1](https://github.com/googleapis/python-vision/compare/v3.4.0...v3.4.1) (2023-03-23)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#527](https://github.com/googleapis/python-vision/issues/527)) ([d589fe1](https://github.com/googleapis/python-vision/commit/d589fe1e7e8106aae896cea1ee0737cdcddbc0fd))
+
 ## [3.4.0](https://github.com/googleapis/python-vision/compare/v3.3.1...v3.4.0) (2023-02-28)
 
 
diff --git a/packages/google-cloud-vision/google/cloud/vision/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision_v1/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p2beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p3beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/gapic_version.py b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/gapic_version.py
index 431567aa07df..0807f93d900c 100644
--- a/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/gapic_version.py
+++ b/packages/google-cloud-vision/google/cloud/vision_v1p4beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.4.0"  # {x-release-please-version}
+__version__ = "3.4.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
index e29e0ec20f4f..e4f113a7d3e9 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "0.1.0"
+    "version": "3.4.1"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
index 70f20c5e5334..47dc413461bc 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "0.1.0"
+    "version": "3.4.1"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
index 52e22f36f702..5428660ba614 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p2beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "0.1.0"
+    "version": "3.4.1"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
index 2dae915e840f..404722cfccf3 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p3beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "0.1.0"
+    "version": "3.4.1"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
index a1201ce42817..4a02eef97e44 100644
--- a/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
+++ b/packages/google-cloud-vision/samples/generated_samples/snippet_metadata_google.cloud.vision.v1p4beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-vision",
-    "version": "0.1.0"
+    "version": "3.4.1"
   },
   "snippets": [
     {