diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index fc0c6e75a088..ed25898a5f6f 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -6,6 +6,12 @@ name: nightly
 on:
   workflow_call:
   workflow_dispatch:
+  pull_request:
+    # Add `labeled`, so we can trigger a new run by adding a `pr-nightly`
+    # label, which we then use to trigger a `nightly` run.
+    types: [opened, reopened, synchronize, labeled]
+    branches:
+      - "*"
 
 jobs:
   cargo-audit: