diff --git a/.ci/flutter_master.version b/.ci/flutter_master.version
index 0588f82..ec1a949 100644
--- a/.ci/flutter_master.version
+++ b/.ci/flutter_master.version
@@ -1 +1 @@
-9ff2767f3cb6db6121f7717fcdb081eb24e9536d
+4a042046a0f182b2b0729ce7a7271276b08d4f19
diff --git a/packages/in_app_purchase/in_app_purchase_storekit/example/shared/RunnerTests/InAppPurchasePluginTests.swift b/packages/in_app_purchase/in_app_purchase_storekit/example/shared/RunnerTests/InAppPurchasePluginTests.swift
index 117396c..eb49205 100644
--- a/packages/in_app_purchase/in_app_purchase_storekit/example/shared/RunnerTests/InAppPurchasePluginTests.swift
+++ b/packages/in_app_purchase/in_app_purchase_storekit/example/shared/RunnerTests/InAppPurchasePluginTests.swift
@@ -153,7 +153,7 @@
       "transactionTimeStamp": NSDate().timeIntervalSince1970,
     ]
 
-    let paymentTransactionStub = SKPaymentTransactionStub(map: transactionMap)
+    let _ = SKPaymentTransactionStub(map: transactionMap)
 
     let handler = PaymentQueueHandlerStub()
     plugin.paymentQueueHandler = handler