diff --git a/.github/workflows/knative-releasability.yaml b/.github/workflows/knative-releasability.yaml
index f9b1799f24..cf885877cb 100644
--- a/.github/workflows/knative-releasability.yaml
+++ b/.github/workflows/knative-releasability.yaml
@@ -60,7 +60,7 @@ jobs:
           go-version: 1.15.x
 
       - name: Install Dependencies
-        run: GO111MODULE=on go get knative.dev/test-infra/buoy@master
+        run: GO111MODULE=on go get knative.dev/test-infra/buoy@main
 
       - name: Check out code
         uses: actions/checkout@v2
diff --git a/.github/workflows/knative-release-notes.yaml b/.github/workflows/knative-release-notes.yaml
index b9c30dd993..517f429bc8 100644
--- a/.github/workflows/knative-release-notes.yaml
+++ b/.github/workflows/knative-release-notes.yaml
@@ -21,9 +21,9 @@ on:
   workflow_dispatch:
     inputs:
       branch:
-        description: 'Branch? (master)'
+        description: 'Branch? (main)'
         required: true
-        default: 'master'
+        default: 'main'
       start-sha:
         description: 'Starting SHA? (last tag on branch)'
       end-sha: