diff --git a/.github/workflows/run-nala-default.yml b/.github/workflows/run-nala-default.yml
index 4031be7c8d..40bbdd24af 100644
--- a/.github/workflows/run-nala-default.yml
+++ b/.github/workflows/run-nala-default.yml
@@ -10,6 +10,8 @@ on:
       - stage
       - main
     types: [opened, synchronize, reopened]
+  
+  workflow_dispatch:
 
 jobs:
   run-nala-tests:
diff --git a/nala/utils/pr.run.sh b/nala/utils/pr.run.sh
index 96cbc30180..c749ad2f55 100755
--- a/nala/utils/pr.run.sh
+++ b/nala/utils/pr.run.sh
@@ -42,6 +42,23 @@ export PR_NUMBER
 
 echo "PR Branch live URL: $PR_BRANCH_LIVE_URL_GH"
 
+# Purge the PR branch before running tests
+echo "Purging branch: $FEATURE_BRANCH"
+PURGE_URL="https://admin.hlx.page/code/$prOrg/$prRepo/$FEATURE_BRANCH/*"
+
+echo "Executing: curl -si -X POST \"$PURGE_URL\""
+PURGE_RESPONSE=$(curl -si -X POST "$PURGE_URL")
+
+echo "Waiting 10 seconds for purge to complete..."
+sleep 10
+
+# Check if the purge was successful
+if echo "$PURGE_RESPONSE" | grep -q "202"; then
+  echo "Branch $FEATURE_BRANCH successfully purged"
+else
+  echo "Failed to purge branch $FEATURE_BRANCH"
+  echo "Response: $PURGE_RESPONSE"
+fi
 
 # Convert GitHub Tag(@) labels that can be grepped
 for label in ${labels}; do