diff --git a/ab-testing/abTests.ts b/ab-testing/abTests.ts
index 913dbd4a226..621d786989f 100644
--- a/ab-testing/abTests.ts
+++ b/ab-testing/abTests.ts
@@ -25,9 +25,10 @@ const ABTests: ABTest[] = [
 		description: "Testing Prebid.js v10 integration on DCR",
 		owners: ["commercial.dev@guardian.co.uk"],
 		status: "ON",
-		expirationDate: "2025-12-30",
+		expirationDate: "2025-12-10",
 		type: "client",
-		audienceSize: 0 / 100,
+		audienceSize: 10 / 100,
+		audienceSpace: "A",
 		groups: ["control", "variant"],
 		shouldForceMetricsCollection: true,
 	},