diff --git a/packages/browser-pay/src/interceptor.protocol.test.ts b/packages/browser-pay/src/interceptor.protocol.test.ts
index 7187b7dda..3b793915f 100644
--- a/packages/browser-pay/src/interceptor.protocol.test.ts
+++ b/packages/browser-pay/src/interceptor.protocol.test.ts
@@ -1110,18 +1110,31 @@ describe("interceptor CDP decisions", () => {
         ...paused,
         params: { ...paused.params, requestId: "req-b" },
       });
-      await new Promise((resolve) => setTimeout(resolve, 40));
-      expect(calls).toBe(1);
-      release();
       await waitFor(
         () =>
           stub.commands.filter(
-            (command) => command.method === "Fetch.failRequest",
+            (command) =>
+              command.method === "Runtime.evaluate" &&
+              command.params.expression === "location.origin",
           ).length >= 2,
-        "both failed",
+        "second origin",
+      );
+      // The stub writes this reply before the command is visible. setImmediate
+      // runs after the poll that applies it, which is when req-b joins.
+      await new Promise((resolve) => setImmediate(resolve));
+      expect(calls).toBe(1);
+      release();
+      await waitFor(
+        () => events.filter((event) => event.type === "refused").length >= 2,
+        "both refused",
       );
       expect(calls).toBe(1);
       expect(warnings).toEqual(["payment relay refused the paused request"]);
+      expect(
+        stub.commands.filter(
+          (command) => command.method === "Fetch.failRequest",
+        ),
+      ).toHaveLength(2);
       expect(events.filter((event) => event.type === "refused")).toHaveLength(
         2,
       );
diff --git a/packages/browser-pay/src/interceptor.relay-in-progress.test.ts b/packages/browser-pay/src/interceptor.relay-in-progress.test.ts
index f7f927ab7..ed7be7b29 100644
--- a/packages/browser-pay/src/interceptor.relay-in-progress.test.ts
+++ b/packages/browser-pay/src/interceptor.relay-in-progress.test.ts
@@ -802,7 +802,9 @@ describe("relay_in_progress", () => {
       },
       placeholder: HELD,
       profileId: "shopify-card-vault",
-      timeoutMs: 500,
+      // The later waiter starts after the retry post, so its deadline trails
+      // the first by about one poll backoff. 1.5s keeps that gap if a timer fires late.
+      timeoutMs: 1_500,
     });
     handle.on((event) => events.push(event));
     try {
@@ -812,8 +814,7 @@ describe("relay_in_progress", () => {
         "Fetch.enable",
       );
       emitPaused(cdp, "req-early-deadline");
-      await waitFor(() => calls === 1, "first post");
-      await new Promise((resolve) => setTimeout(resolve, 40));
+      await waitFor(() => calls === 2, "retry posted");
       emitPaused(cdp, "req-later-deadline");
       await waitFor(
         () =>
@@ -1111,8 +1112,8 @@ describe("relay retry before the deadline", () => {
       },
       placeholder: HELD,
       profileId: "shopify-card-vault",
-      timeoutMs: 2_000,
-      attemptTimeoutMs: 120,
+      timeoutMs: 5_000,
+      attemptTimeoutMs: 400,
     });
     try {
       armPage(cdp);
@@ -1122,7 +1123,6 @@ describe("relay retry before the deadline", () => {
       );
       emitPaused(cdp, "req-shared-a");
       await waitFor(() => calls === 1, "first attempt");
-      await new Promise((resolve) => setTimeout(resolve, 80));
       emitPaused(cdp, "req-shared-b");
       await waitFor(
         () => count(cdp.commands, "Fetch.fulfillRequest") === 2,
@@ -1130,8 +1130,8 @@ describe("relay retry before the deadline", () => {
       );
       expect(calls).toBe(2);
       expect(aborts).toHaveLength(1);
-      expect(aborts[0]).toBeGreaterThanOrEqual(100);
-      expect(aborts[0]).toBeLessThan(160);
+      expect(aborts[0]).toBeGreaterThanOrEqual(300);
+      expect(aborts[0]).toBeLessThan(2_000);
       expect(count(cdp.commands, "Fetch.failRequest")).toBe(0);
     } finally {
       await handle.detach();