diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fa7c25b0d..e898ba7d3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,10 @@
 name: CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches: ['master']
+  pull_request:
+    types: [opened, synchronize]
 
 jobs:
   build:
@@ -9,14 +13,18 @@ jobs:
       matrix:
         node-version: ['16']
     steps:
-      - uses: actions/checkout@v2
+      - name: Check out code
+        uses: actions/checkout@v2
+
       - name: Setup Node ${{ matrix.node-version }}
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
+
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
+
       - name: Restore Yarn cache
         uses: actions/cache@v2
         with:
@@ -24,6 +32,7 @@ jobs:
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
           restore-keys: |
             ${{ runner.os }}-yarn-
+
       - name: Restore Lerna cache
         uses: actions/cache@v2
         with:
@@ -31,6 +40,7 @@ jobs:
             node_modules
             */*/node_modules
           key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
+
       - run: yarn install --frozen-lockfile
       - run: make bootstrap
       - run: make packages-build
diff --git a/yarn.lock b/yarn.lock
index 0cfdafa4d..ce97f6096 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16045,11 +16045,6 @@ multimatch@^3.0.0:
     arrify "^1.0.1"
     minimatch "^3.0.4"
 
-mustache@^2.3.0:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/mustache/-/mustache-2.3.2.tgz#a6d4d9c3f91d13359ab889a812954f9230a3d0c5"
-  integrity sha512-KpMNwdQsYz3O/SBS1qJ/o3sqUJ5wSb8gb0pul8CO0S56b9Y2ALm8zCfsjPXsqGFfoNBkDwZuZIAjhsZI03gYVQ==
-
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"