diff --git a/.release-please-individual-manifest.json b/.release-please-individual-manifest.json
index 1acd0a1fc40c..48b0df557369 100644
--- a/.release-please-individual-manifest.json
+++ b/.release-please-individual-manifest.json
@@ -1,6 +1,6 @@
 {
   "packages/bigframes": "2.47.0",
-  "packages/google-cloud-bigquery": "3.42.3",
+  "packages/google-cloud-bigquery": "3.42.4",
   "packages/google-crc32c": "1.8.0",
   "packages/pandas-gbq": "0.35.0"
 }
\ No newline at end of file
diff --git a/librarian.yaml b/librarian.yaml
index 4d7cd98c7193..3f47ca63cebb 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -559,7 +559,7 @@ libraries:
     python:
       default_version: v1beta
   - name: google-cloud-bigquery
-    version: 3.42.3
+    version: 3.42.4
     python:
       library_type: GAPIC_COMBO
       metadata_name_override: bigquery
diff --git a/packages/google-cloud-bigquery/CHANGELOG.md b/packages/google-cloud-bigquery/CHANGELOG.md
index e39435c7f8e1..52f40b977f5c 100644
--- a/packages/google-cloud-bigquery/CHANGELOG.md
+++ b/packages/google-cloud-bigquery/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-bigquery/#history
 
+## [3.42.4](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-v3.42.3...google-cloud-bigquery-v3.42.4) (2026-08-04)
+
+
+### Bug Fixes
+
+* **bigquery:** Fix bigquery socket leak ([#17953](https://github.com/googleapis/google-cloud-python/issues/17953)) ([8c26b38](https://github.com/googleapis/google-cloud-python/commit/8c26b38a7ab4b5c543f479705c4a231fffffcfcc))
+
 ## [3.42.3](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-v3.42.2...google-cloud-bigquery-v3.42.3) (2026-07-30)
 
 
diff --git a/packages/google-cloud-bigquery/google/cloud/bigquery/version.py b/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
index 4caac1516289..a19a4790fce2 100644
--- a/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
+++ b/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "3.42.3"
+__version__ = "3.42.4"