diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f8ae0983..66eea798 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: "20.x"
+          node-version: "20.11.0"
           cache: "yarn"
       - run: yarn install --immutable
       - run: yarn workspaces foreach --all --include "@apollo/*" add -D -P @apollo/client@${{ matrix.version }}
diff --git a/packages/client-react-streaming/src/AccumulateMultipartResponsesLink.test.ts b/packages/client-react-streaming/src/AccumulateMultipartResponsesLink.test.ts
index 5df1f453..2b5473f9 100644
--- a/packages/client-react-streaming/src/AccumulateMultipartResponsesLink.test.ts
+++ b/packages/client-react-streaming/src/AccumulateMultipartResponsesLink.test.ts
@@ -10,14 +10,11 @@ import { test, mock } from "node:test";
 import assert from "node:assert";
 import { fromPartial } from "@total-typescript/shoehorn";
 import type { SubscriptionObserver } from "zen-observable-ts";
-import { runInConditions } from "./util/runInConditions.js";
-
-runInConditions("node", "browser");
 
 const { DebounceMultipartResponsesLink: AccumulateMultipartResponsesLink } =
   await import("#bundled");
 
-test("normal queries can resolve synchronously", () => {
+await test("normal queries can resolve synchronously", () => {
   const query = gql`
     query {
       fastField
@@ -49,7 +46,7 @@ test("normal queries can resolve synchronously", () => {
   });
 });
 
-test("deferred query will complete synchonously if maxDelay is 0", () => {
+await test("deferred query will complete synchonously if maxDelay is 0", () => {
   const query = gql`
     query {
       fastField
@@ -84,7 +81,7 @@ test("deferred query will complete synchonously if maxDelay is 0", () => {
   });
 });
 
-test("`next` call will be debounced and results will be merged together", () => {
+await test("`next` call will be debounced and results will be merged together", () => {
   mock.timers.enable();
 
   const query = gql`
diff --git a/packages/client-react-streaming/src/RemoveMultipartDirectivesLink.test.ts b/packages/client-react-streaming/src/RemoveMultipartDirectivesLink.test.ts
index 68f6f784..02a6adc0 100644
--- a/packages/client-react-streaming/src/RemoveMultipartDirectivesLink.test.ts
+++ b/packages/client-react-streaming/src/RemoveMultipartDirectivesLink.test.ts
@@ -5,9 +5,6 @@ import { gql, Observable } from "@apollo/client/core/index.js";
 import { print } from "graphql";
 import { it } from "node:test";
 import assert from "node:assert";
-import { runInConditions } from "./util/runInConditions.js";
-
-runInConditions("node", "browser");
 
 const { RemoveMultipartDirectivesLink } = await import("#bundled");
 
@@ -51,7 +48,7 @@ const queryWithDeferAndStripAnnotation = gql`
   }
 `;
 
-it("removes fields with a @defer directive", () => {
+await it("removes fields with a @defer directive", () => {
   const link = new RemoveMultipartDirectivesLink({
     stripDefer: true,
   });
@@ -69,7 +66,7 @@ query myQuery {
   );
 });
 
-it("`stripDefer` defaults to `true`", () => {
+await it("`stripDefer` defaults to `true`", () => {
   const link = new RemoveMultipartDirectivesLink({
     stripDefer: true,
   });
@@ -87,7 +84,7 @@ query myQuery {
   );
 });
 
-it("preserves @defer fields with a `SsrDontStrip` label", () => {
+await it("preserves @defer fields with a `SsrDontStrip` label", () => {
   const link = new RemoveMultipartDirectivesLink({
     stripDefer: true,
   });
@@ -114,7 +111,7 @@ query myQuery {
   );
 });
 
-it("can be configured to not remove @defer fields", () => {
+await it("can be configured to not remove @defer fields", () => {
   const link = new RemoveMultipartDirectivesLink({
     stripDefer: false,
   });
@@ -138,7 +135,7 @@ query myQuery {
   );
 });
 
-it("even with `stripDefer: false`, certain fields can be marked for stripping", () => {
+await it("even with `stripDefer: false`, certain fields can be marked for stripping", () => {
   const link = new RemoveMultipartDirectivesLink({
     stripDefer: false,
   });