diff --git a/src/client-side-encryption/client_encryption.ts b/src/client-side-encryption/client_encryption.ts
index 65676c5468..4d82b12463 100644
--- a/src/client-side-encryption/client_encryption.ts
+++ b/src/client-side-encryption/client_encryption.ts
@@ -313,7 +313,7 @@ export class ClientEncryption {
       .collection<DataKey>(collectionName)
       .bulkWrite(replacements, {
         writeConcern: { w: 'majority' },
-        timeoutMS: timeoutContext?.remainingTimeMS
+        timeoutMS: timeoutContext.csotEnabled() ? timeoutContext?.remainingTimeMS : undefined
       });
 
     return { bulkWriteResult: result };
diff --git a/test/integration/client-side-encryption/driver.test.ts b/test/integration/client-side-encryption/driver.test.ts
index c410004623..0804794947 100644
--- a/test/integration/client-side-encryption/driver.test.ts
+++ b/test/integration/client-side-encryption/driver.test.ts
@@ -541,7 +541,7 @@ describe('Client Side Encryption Functional', function () {
 
       // TOOD, does not make rewriteManyDataKey fail
       describe.skip('when the find and bulk operation takes too long', function () {
-        // together they add up to 600, exceeding the timeout of 500
+        // together they add up to 800, exceeding the timeout of 500
         makeBlockingFailFor('update', 400);
         makeBlockingFailFor('listCollections', 400);