diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a3d1f01..da0b97f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.17.1"
+  ".": "3.18.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ecde7d4..87c0d35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-build/#history
 
+## [3.18.0](https://github.com/googleapis/python-cloudbuild/compare/v3.17.1...v3.18.0) (2023-07-10)
+
+
+### Features
+
+* Added e2-medium machine type ([#415](https://github.com/googleapis/python-cloudbuild/issues/415)) ([9880460](https://github.com/googleapis/python-cloudbuild/commit/9880460c741a5209eed9791c50510a50741bfae5))
+
 ## [3.17.1](https://github.com/googleapis/python-cloudbuild/compare/v3.17.0...v3.17.1) (2023-07-04)
 
 
diff --git a/google/cloud/devtools/cloudbuild/gapic_version.py b/google/cloud/devtools/cloudbuild/gapic_version.py
index 404743e..16b2929 100644
--- a/google/cloud/devtools/cloudbuild/gapic_version.py
+++ b/google/cloud/devtools/cloudbuild/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.17.1"  # {x-release-please-version}
+__version__ = "3.18.0"  # {x-release-please-version}
diff --git a/google/cloud/devtools/cloudbuild_v1/gapic_version.py b/google/cloud/devtools/cloudbuild_v1/gapic_version.py
index 404743e..16b2929 100644
--- a/google/cloud/devtools/cloudbuild_v1/gapic_version.py
+++ b/google/cloud/devtools/cloudbuild_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.17.1"  # {x-release-please-version}
+__version__ = "3.18.0"  # {x-release-please-version}
diff --git a/google/cloud/devtools/cloudbuild_v2/gapic_version.py b/google/cloud/devtools/cloudbuild_v2/gapic_version.py
index 404743e..16b2929 100644
--- a/google/cloud/devtools/cloudbuild_v2/gapic_version.py
+++ b/google/cloud/devtools/cloudbuild_v2/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.17.1"  # {x-release-please-version}
+__version__ = "3.18.0"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v1.json b/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v1.json
index e379efa..49e2494 100644
--- a/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-build",
-    "version": "0.1.0"
+    "version": "3.18.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v2.json b/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v2.json
index 818d3fc..ce4a14f 100644
--- a/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v2.json
+++ b/samples/generated_samples/snippet_metadata_google.devtools.cloudbuild.v2.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-build",
-    "version": "0.1.0"
+    "version": "3.18.0"
   },
   "snippets": [
     {