diff --git a/.github/workflows/perf.yml b/.github/workflows/perf.yml
index 36b5d8a40..064c84431 100644
--- a/.github/workflows/perf.yml
+++ b/.github/workflows/perf.yml
@@ -2,6 +2,12 @@ name: PerformanceCheck
 
 on:
   workflow_dispatch:
+    inputs:
+      BRANCH:
+        description: Branch to checkout
+        required: false
+        default: 'main'
+        type: string
   # Don't run on every merge to main, because many merges
   # may not even be vm related, but infra, or GH Actions
   pull_request:
@@ -28,6 +34,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          ref: ${{ inputs.BRANCH }}
 
       - uses: marceloprado/has-changed-path@v1.0.1
         id: did-change
diff --git a/.github/workflows/size.yml b/.github/workflows/size.yml
index a47a3623d..11a272b80 100644
--- a/.github/workflows/size.yml
+++ b/.github/workflows/size.yml
@@ -2,6 +2,12 @@ name: Size
 
 on:
   workflow_dispatch:
+    inputs:
+      BRANCH:
+        description: Branch to checkout
+        required: false
+        default: 'main'
+        type: string
   push:
     branches:
       - main
@@ -23,6 +29,7 @@ jobs:
           pnpm-args: '--ignore-scripts'
           node-version: 20.1.0
           repo-token: ${{ secrets.GITHUB_TOKEN }}
+          ref: ${{ inputs.BRANCH }}
       - run: pnpm turbo build
       - run: sudo snap install dust
       - name: "Get sizes for development outputs"