diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index a09aa7a64..0d7003e95 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -18,13 +18,13 @@ on:
 
   pull_request:
     branches:
-    - master
+    - main
     - 'envoy-release/**'
     - 'istio-release/**'
 
   push:
     branches:
-    - master
+    - main
     - 'envoy-release/**'
     - 'istio-release/**'
 
@@ -145,11 +145,11 @@ jobs:
         //...
 
     - name: Skip Bazel cache update
-      if: ${{ github.ref != 'refs/heads/master' }}
+      if: ${{ github.ref != 'refs/heads/main' }}
       run: echo "CACHE_SKIP_SAVE=true" >> $GITHUB_ENV
 
     - name: Cleanup Bazel cache
-      if: ${{ github.ref == 'refs/heads/master' }}
+      if: ${{ github.ref == 'refs/heads/main' }}
       run: |
         export OUTPUT=$(${{ matrix.run_under }} bazel info output_base)
         echo "===== BEFORE ====="
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5d311c819..74e56f021 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,13 +18,13 @@ on:
 
   pull_request:
     branches:
-    - master
+    - main
     - 'envoy-release/**'
     - 'istio-release/**'
 
   push:
     branches:
-    - master
+    - main
     - 'envoy-release/**'
     - 'istio-release/**'
 
@@ -83,11 +83,11 @@ jobs:
         retention-days: 3
 
     - name: Skip Bazel cache update
-      if: ${{ github.ref != 'refs/heads/master' }}
+      if: ${{ github.ref != 'refs/heads/main' }}
       run: echo "CACHE_SKIP_SAVE=true" >> $GITHUB_ENV
 
     - name: Cleanup Bazel cache
-      if: ${{ github.ref == 'refs/heads/master' }}
+      if: ${{ github.ref == 'refs/heads/main' }}
       run: |
         export OUTPUT=$(bazel info output_base)
         # Distfiles for Rust toolchains (350 MiB).
@@ -341,11 +341,11 @@ jobs:
         //test:signature_util_test
 
     - name: Skip Bazel cache update
-      if: ${{ matrix.cache && github.ref != 'refs/heads/master' }}
+      if: ${{ matrix.cache && github.ref != 'refs/heads/main' }}
       run: echo "CACHE_SKIP_SAVE=true" >> $GITHUB_ENV
 
     - name: Cleanup Bazel cache
-      if: ${{ matrix.cache && github.ref == 'refs/heads/master' }}
+      if: ${{ matrix.cache && github.ref == 'refs/heads/main' }}
       run: |
         export OUTPUT=$(${{ matrix.run_under }} bazel info output_base)
         echo "===== BEFORE ====="