diff --git a/packages/google-cloud-network-services/google/cloud/network_services/gapic_version.py b/packages/google-cloud-network-services/google/cloud/network_services/gapic_version.py
index 8442537e9014..360a0d13ebdd 100644
--- a/packages/google-cloud-network-services/google/cloud/network_services/gapic_version.py
+++ b/packages/google-cloud-network-services/google/cloud/network_services/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.5.5"  # {x-release-please-version}
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-network-services/google/cloud/network_services_v1/gapic_version.py b/packages/google-cloud-network-services/google/cloud/network_services_v1/gapic_version.py
index 8442537e9014..360a0d13ebdd 100644
--- a/packages/google-cloud-network-services/google/cloud/network_services_v1/gapic_version.py
+++ b/packages/google-cloud-network-services/google/cloud/network_services_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.5.5"  # {x-release-please-version}
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-network-services/noxfile.py b/packages/google-cloud-network-services/noxfile.py
index 7d3551347c78..1e6cd48d0529 100644
--- a/packages/google-cloud-network-services/noxfile.py
+++ b/packages/google-cloud-network-services/noxfile.py
@@ -282,6 +282,15 @@ def docs(session):
 
     session.install("-e", ".")
     session.install(
+        # We need to pin to specific versions of the `sphinxcontrib-*` packages
+        # which still support sphinx 4.x.
+        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+        "sphinxcontrib-applehelp==1.0.4",
+        "sphinxcontrib-devhelp==1.0.2",
+        "sphinxcontrib-htmlhelp==2.0.1",
+        "sphinxcontrib-qthelp==1.0.3",
+        "sphinxcontrib-serializinghtml==1.1.5",
         "sphinx==4.5.0",
         "alabaster",
         "recommonmark",
@@ -308,6 +317,15 @@ def docfx(session):
 
     session.install("-e", ".")
     session.install(
+        # We need to pin to specific versions of the `sphinxcontrib-*` packages
+        # which still support sphinx 4.x.
+        # See https://github.com/googleapis/sphinx-docfx-yaml/issues/344
+        # and https://github.com/googleapis/sphinx-docfx-yaml/issues/345.
+        "sphinxcontrib-applehelp==1.0.4",
+        "sphinxcontrib-devhelp==1.0.2",
+        "sphinxcontrib-htmlhelp==2.0.1",
+        "sphinxcontrib-qthelp==1.0.3",
+        "sphinxcontrib-serializinghtml==1.1.5",
         "gcp-sphinx-docfx-yaml",
         "alabaster",
         "recommonmark",
diff --git a/packages/google-cloud-network-services/samples/generated_samples/snippet_metadata_google.cloud.networkservices.v1.json b/packages/google-cloud-network-services/samples/generated_samples/snippet_metadata_google.cloud.networkservices.v1.json
index 87e8688d578b..e3ddce6ac243 100644
--- a/packages/google-cloud-network-services/samples/generated_samples/snippet_metadata_google.cloud.networkservices.v1.json
+++ b/packages/google-cloud-network-services/samples/generated_samples/snippet_metadata_google.cloud.networkservices.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-network-services",
-    "version": "0.5.5"
+    "version": "0.1.0"
   },
   "snippets": [
     {