diff --git a/system-test/bigtable.ts b/system-test/bigtable.ts
index 3bf42f1e0..8ace09947 100644
--- a/system-test/bigtable.ts
+++ b/system-test/bigtable.ts
@@ -155,9 +155,8 @@ describe('Bigtable', () => {
 
     it('should test Iam permissions for the instance', async () => {
       const permissions = ['bigtable.tables.get', 'bigtable.tables.readRows'];
-      const [grantedPermissions] = await INSTANCE.testIamPermissions(
-        permissions
-      );
+      const [grantedPermissions] =
+        await INSTANCE.testIamPermissions(permissions);
       assert.strictEqual(grantedPermissions.length, permissions.length);
       permissions.forEach(permission => {
         assert.strictEqual(grantedPermissions.includes(permission), true);
diff --git a/test/readrows.ts b/test/readrows.ts
index 11d8a4597..b464d640c 100644
--- a/test/readrows.ts
+++ b/test/readrows.ts
@@ -42,7 +42,9 @@ describe('Bigtable/ReadRows', () => {
     service = new BigtableClientMockService(server);
   });
 
-  it('should create read stream and read synchronously', done => {
+  it('should create read stream and read synchronously', function (done) {
+    this.timeout(60000);
+
     // 1000 rows must be enough to reproduce issues with losing the data and to create backpressure
     const keyFrom = 0;
     const keyTo = 1000;