diff --git a/.github/snippet-bot.yml b/.github/snippet-bot.yml
new file mode 100644
index 000000000..e69de29bb
diff --git a/.github/workflows/approve-readme.yaml b/.github/workflows/approve-readme.yaml
new file mode 100644
index 000000000..e2d841d6c
--- /dev/null
+++ b/.github/workflows/approve-readme.yaml
@@ -0,0 +1,54 @@
+on:
+  pull_request:
+name: auto-merge-readme
+jobs:
+  approve:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'googleapis' && github.head_ref == 'autosynth-readme'
+    steps:
+      - uses: actions/github-script@v3.0.0
+        with:
+          github-token: ${{secrets.YOSHI_APPROVER_TOKEN}}
+          script: |
+            // only approve PRs from yoshi-automation
+            if (context.payload.pull_request.user.login !== "yoshi-automation") {
+              return;
+            }
+
+            // only approve PRs like "chore: release <release version>"
+            if (!context.payload.pull_request.title === "chore: regenerate README") {
+              return;
+            }
+
+            // only approve PRs with README.md and synth.metadata changes
+            const files = new Set(
+              (
+                await github.paginate(
+                  github.pulls.listFiles.endpoint({
+                    owner: context.repo.owner,
+                    repo: context.repo.repo,
+                    pull_number: context.payload.pull_request.number,
+                  })
+                )
+              ).map(file => file.filename)
+            );
+            if (files.size != 2 || !files.has("README.md") || !files.has(".github/readme/synth.metadata/synth.metadata")) {
+              return;
+            }
+
+            // approve README regeneration PR
+            await github.pulls.createReview({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: 'Rubber stamped PR!',
+              pull_number: context.payload.pull_request.number,
+              event: 'APPROVE'
+            });
+
+            // attach automerge label
+            await github.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              labels: ['automerge']
+            });
diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index e78ae54c3..516439d63 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -69,9 +69,16 @@ integration)
     RETURN_CODE=$?
     ;;
 samples)
-    if [[ -f samples/pom.xml ]]
+    SAMPLES_DIR=samples
+    # only run ITs in snapshot/ on presubmit PRs. run ITs in all 3 samples/ subdirectories otherwise.
+    if [[ ! -z ${KOKORO_GITHUB_PULL_REQUEST_NUMBER} ]]
     then
-        pushd samples
+      SAMPLES_DIR=samples/snapshot
+    fi
+
+    if [[ -f ${SAMPLES_DIR}/pom.xml ]]
+    then
+        pushd {SAMPLES_DIR}
         mvn -B \
           -Penable-samples \
           -DtrimStackTrace=false \
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5882fde7f..952bc40ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.108.6](https://www.github.com/googleapis/java-pubsub/compare/v1.108.5...v1.108.6) (2020-10-22)
+
+
+### Dependencies
+
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.13.0 ([#400](https://www.github.com/googleapis/java-pubsub/issues/400)) ([bd3d400](https://www.github.com/googleapis/java-pubsub/commit/bd3d400b11a0677bcd3ca2bf8cd5d7fd0fbf59bc))
+
 ### [1.108.5](https://www.github.com/googleapis/java-pubsub/compare/v1.108.4...v1.108.5) (2020-10-19)
 
 
diff --git a/README.md b/README.md
index 6d02955a3..d2bd6e3f6 100644
--- a/README.md
+++ b/README.md
@@ -47,11 +47,11 @@ If you are using Maven without BOM, add this to your dependencies:
 
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-pubsub:1.108.5'
+compile 'com.google.cloud:google-cloud-pubsub:1.108.6'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-pubsub" % "1.108.5"
+libraryDependencies += "com.google.cloud" % "google-cloud-pubsub" % "1.108.6"
 ```
 [//]: # ({x-version-update-end})
 
diff --git a/google-cloud-pubsub-bom/pom.xml b/google-cloud-pubsub-bom/pom.xml
index 5b18f1484..d12ac30b0 100644
--- a/google-cloud-pubsub-bom/pom.xml
+++ b/google-cloud-pubsub-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub-bom</artifactId>
-  <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -64,17 +64,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-        <version>1.90.5</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.90.6</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-        <version>1.90.5</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.90.6</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index 99d761089..8be76d0ac 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub</artifactId>
-  <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Pub/Sub</name>
   <url>https://github.com/googleapis/java-pubsub</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-pubsub</site.installationModule>
diff --git a/grpc-google-cloud-pubsub-v1/pom.xml b/grpc-google-cloud-pubsub-v1/pom.xml
index 12a96c503..b96a15308 100644
--- a/grpc-google-cloud-pubsub-v1/pom.xml
+++ b/grpc-google-cloud-pubsub-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-  <version>1.90.5</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+  <version>1.90.6</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
   <name>grpc-google-cloud-pubsub-v1</name>
   <description>GRPC library for grpc-google-cloud-pubsub-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index d8435f5c3..d82c3c505 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-pubsub-parent</artifactId>
   <packaging>pom</packaging>
-  <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+  <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   <name>Google Cloud Pub/Sub Parent</name>
   <url>https://github.com/googleapis/java-pubsub</url>
   <description>
@@ -70,7 +70,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>0.12.1</version>
+        <version>0.13.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -78,17 +78,17 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-        <version>1.90.5</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+        <version>1.90.6</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-pubsub-v1</artifactId>
-        <version>1.90.5</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
+        <version>1.90.6</version><!-- {x-version-update:grpc-google-cloud-pubsub-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsub</artifactId>
-        <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+        <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-cloud-pubsub-v1/pom.xml b/proto-google-cloud-pubsub-v1/pom.xml
index 0b4e52fdc..211c08fd3 100644
--- a/proto-google-cloud-pubsub-v1/pom.xml
+++ b/proto-google-cloud-pubsub-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-pubsub-v1</artifactId>
-  <version>1.90.5</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
+  <version>1.90.6</version><!-- {x-version-update:proto-google-cloud-pubsub-v1:current} -->
   <name>proto-google-cloud-pubsub-v1</name>
   <description>PROTO library for proto-google-cloud-pubsub-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-pubsub-parent</artifactId>
-    <version>1.108.5</version><!-- {x-version-update:google-cloud-pubsub:current} -->
+    <version>1.108.6</version><!-- {x-version-update:google-cloud-pubsub:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/renovate.json b/renovate.json
index a6e2d9ca1..decec422e 100644
--- a/renovate.json
+++ b/renovate.json
@@ -17,24 +17,6 @@
       ],
       "versionScheme": "docker"
     },
-    {
-      "packagePatterns": [
-        "^com.google.api:gax",
-        "^com.google.auth:",
-        "^com.google.cloud:google-cloud-core",
-        "^io.grpc:",
-        "^com.google.guava:"
-      ],
-      "groupName": "core dependencies"
-    },
-    {
-      "packagePatterns": [
-        "^com.google.http-client:",
-        "^com.google.oauth-client:",
-        "^com.google.api-client:"
-      ],
-      "groupName": "core transport dependencies"
-    },
     {
       "packagePatterns": [
         "*"
@@ -63,6 +45,16 @@
       "semanticCommitType": "chore",
       "semanticCommitScope": "deps"
     },
+    {
+      "packagePatterns": [
+        "^junit:junit",
+        "^com.google.truth:truth",
+        "^org.mockito:mockito-core",
+        "^org.objenesis:objenesis"
+      ],
+      "semanticCommitType": "test",
+      "semanticCommitScope": "deps"
+    },
     {
       "packagePatterns": [
         "^com.google.cloud:google-cloud-"
@@ -78,4 +70,4 @@
   ],
   "semanticCommits": true,
   "masterIssue": true
-}
\ No newline at end of file
+}
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index b9b3b784d..1fa69e2ee 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -43,7 +43,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-pubsub</artifactId>
-      <version>1.108.5</version>
+      <version>1.108.6</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/samples/snippets/pom.xml b/samples/snippets/pom.xml
index 2ed3c4228..f61b83f0c 100644
--- a/samples/snippets/pom.xml
+++ b/samples/snippets/pom.xml
@@ -45,7 +45,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>libraries-bom</artifactId>
-        <version>12.1.0</version>
+        <version>13.1.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/synth.metadata b/synth.metadata
index d1c0f6eff..33ca64680 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-pubsub.git",
-        "sha": "3dc67db7f5213ea2543e52f21cb2eba6a75a9126"
+        "sha": "bb09a8a0ecc258b66296e77e405eb55f789820ee"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "b65ef07d99946d23e900ef2cc490274a16edd336"
+        "sha": "6abb59097be84599a1d6091fe534a49e5c5cf948"
       }
     }
   ],
@@ -42,7 +42,9 @@
     ".github/PULL_REQUEST_TEMPLATE.md",
     ".github/readme/synth.py",
     ".github/release-please.yml",
+    ".github/snippet-bot.yml",
     ".github/trusted-contribution.yml",
+    ".github/workflows/approve-readme.yaml",
     ".github/workflows/auto-release.yaml",
     ".github/workflows/ci.yaml",
     ".github/workflows/formatting.yaml",
diff --git a/versions.txt b/versions.txt
index f1420717d..133d63e94 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,6 +1,6 @@
 # Format:
 # module:released-version:current-version
 
-proto-google-cloud-pubsub-v1:1.90.5:1.90.5
-grpc-google-cloud-pubsub-v1:1.90.5:1.90.5
-google-cloud-pubsub:1.108.5:1.108.5
\ No newline at end of file
+proto-google-cloud-pubsub-v1:1.90.6:1.90.6
+grpc-google-cloud-pubsub-v1:1.90.6:1.90.6
+google-cloud-pubsub:1.108.6:1.108.6
\ No newline at end of file