diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d7f62ea67..a16592d04 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,15 +1,18 @@
-on:
+'on':
   push:
     branches:
-      - master
-  pull_request:
+      - 1.64.0-sp
+  pull_request: null
 name: ci
 jobs:
   units:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [7, 8, 11]
+        java:
+          - 7
+          - 8
+          - 11
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v1
@@ -19,7 +22,6 @@ jobs:
       - run: .kokoro/build.sh
         env:
           JOB_TYPE: test
-
   bazel:
     runs-on: ubuntu-latest
     container: gcr.io/gapic-images/googleapis-bazel:20210105
@@ -29,44 +31,48 @@ jobs:
         with:
           java-version: 8
       - run: java -version
-
       - name: Bazel File Cache Setup
         id: cache-bazel
         uses: actions/cache@v2
         with:
           path: ~/.cache/bazel
           key: ${{ runner.os }}-bazel-20210105-${{ secrets.CACHE_VERSION }}
-
       - name: Bazel Cache Not Found
         if: steps.cache-bazel.outputs.cache-hit != 'true'
         run: |
           echo "No cache found."
       - name: Bazel Cache Found
         if: steps.cache-bazel.outputs.cache-hit == 'true'
-        run: |
+        run: >
           echo -n "Cache found. Cache size: "
+
           du -sh ~/.cache/bazel
+
           echo "If the cache seems broken, update the CACHE_VERSION secret in"
-          echo "https://github.com/googleapis/googleapis-discovery/settings/secrets/actions"
+
+          echo
+          "https://github.com/googleapis/googleapis-discovery/settings/secrets/actions"
+
           echo "(use any random string, any GUID will work)"
+
           echo "and it will start over with a clean cache."
-          echo "The old one will disappear after 7 days."
 
+          echo "The old one will disappear after 7 days."
       - name: Run bazel tests
         run: bazel --batch test //... --noshow_progress --test_output=errors
-
       - uses: actions/upload-artifact@v2
         if: ${{ failure() }}
         with:
           name: test-artifacts
           path: ~/.cache/bazel/*/*/*/gax-java/bazel-out/*/testlogs/*
           retention-days: 5
-
   linkage-monitor:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11]
+        java:
+          - 8
+          - 11
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v1
@@ -74,10 +80,15 @@ jobs:
           java-version: ${{ matrix.java }}
       - run: java -version
       - name: Build and install local Maven repository
-        run: ./gradlew build publishToMavenLocal -x test -x signMavenJavaPublication
-      - name: Generate artifact list (linkage-monitor-artifacts.txt) for Linkage Monitor
+        run: >-
+          ./gradlew build publishToMavenLocal -x test -x
+          signMavenJavaPublication
+      - name: >-
+          Generate artifact list (linkage-monitor-artifacts.txt) for Linkage
+          Monitor
         run: ./gradlew createLinkageMonitorArtifactList
       - name: Check dependency conflicts with the latest Libraries BOM
-        uses: GoogleCloudPlatform/cloud-opensource-java/linkage-monitor@v1-linkagemonitor
+        uses: >-
+          GoogleCloudPlatform/cloud-opensource-java/linkage-monitor@v1-linkagemonitor
       - name: Check dependency conflicts in the gax artifacts
         run: ./gradlew checkJavaLinkage