diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index e7c45fd3..9d507eee 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/repo-automation-bots/owlbot-nodejs:latest
-  digest: sha256:c9c7828c165b1985579098978877935ee52dda2b1b538087514fd24fa2443e7a
+  digest: sha256:41d5457ff79c3945782ab7e23bf4d617fd7bf3f2b03b6d84808010f7d2e10ca2
diff --git a/.github/auto-approve.yml b/.github/auto-approve.yml
index 90369797..a79ba66c 100644
--- a/.github/auto-approve.yml
+++ b/.github/auto-approve.yml
@@ -4,4 +4,9 @@ rules:
   changedFiles:
   - "package\\.json$"
   - "CHANGELOG\\.md$"
-  maxFiles: 3
\ No newline at end of file
+  maxFiles: 3
+- author: "renovate-bot"
+  title: "^(fix\\(deps\\)|chore\\(deps\\)):"
+  changedFiles: 
+  - "/package\\.json$"
+  maxFiles: 2
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index dbcdc7ce..f033c0d2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,6 +24,8 @@ jobs:
       - run: rm -rf node_modules
       - run: npm install
       - run: npm test
+        env:
+          MOCHA_THROW_DEPRECATION: false
   windows:
     runs-on: windows-latest
     steps:
@@ -33,6 +35,8 @@ jobs:
           node-version: 14
       - run: npm install
       - run: npm test
+        env:
+          MOCHA_THROW_DEPRECATION: false
   lint:
     runs-on: ubuntu-latest
     steps:
diff --git a/.kokoro/test.sh b/.kokoro/test.sh
index 5d6383fc..b5646aeb 100755
--- a/.kokoro/test.sh
+++ b/.kokoro/test.sh
@@ -32,6 +32,9 @@ if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]] || [[ $KOKORO_BUILD_ART
   }
   trap cleanup EXIT HUP
 fi
+# Unit tests exercise the entire API surface, which may include
+# deprecation warnings:
+export MOCHA_THROW_DEPRECATION=false
 npm test
 
 # codecov combines coverage across integration and unit tests. Include
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bca1d0b..9d706a37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://www.npmjs.com/package/@google-cloud/language?activeTab=versions
 
+### [4.2.6](https://www.github.com/googleapis/nodejs-language/compare/v4.2.5...v4.2.6) (2021-06-30)
+
+
+### Bug Fixes
+
+* **deps:** google-gax v2.17.0 with mTLS ([#595](https://www.github.com/googleapis/nodejs-language/issues/595)) ([3ac3cfb](https://www.github.com/googleapis/nodejs-language/commit/3ac3cfb8d0ce0ba055502e07178764555d020622))
+
 ### [4.2.5](https://www.github.com/googleapis/nodejs-language/compare/v4.2.4...v4.2.5) (2021-06-22)
 
 
diff --git a/package.json b/package.json
index 9ea8f69c..7a3a1ca0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@google-cloud/language",
   "description": "Google Cloud Natural Language API client for Node.js",
-  "version": "4.2.5",
+  "version": "4.2.6",
   "license": "Apache-2.0",
   "author": "Google Inc",
   "engines": {
@@ -46,7 +46,7 @@
     "precompile": "gts clean"
   },
   "dependencies": {
-    "google-gax": "^2.12.0"
+    "google-gax": "^2.17.0"
   },
   "devDependencies": {
     "@types/mocha": "^8.0.0",
diff --git a/samples/package.json b/samples/package.json
index 1b0771c9..ce188a41 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -17,7 +17,7 @@
   "dependencies": {
     "@google-cloud/automl": "^2.0.0",
     "mathjs": "^9.0.0",
-    "@google-cloud/language": "^4.2.5",
+    "@google-cloud/language": "^4.2.6",
     "@google-cloud/storage": "^5.0.0",
     "yargs": "^16.0.0"
   },