--- a/testing/mozharness/scripts/release/beet_mover.py
+++ b/testing/mozharness/scripts/release/beet_mover.py
@@ -272,24 +272,18 @@ class BeetMover(BaseScript, VirtualenvMi
         key = boto.s3.key.Key(bucket)  # create new key
         key.key = s3_key  # set key name
 
         self.info("Checking if `{}` already exists".format(s3_key))
         key = bucket.get_key(s3_key)
         if not key:
             self.info("Uploading to `{}`".format(s3_key))
             key = bucket.new_key(s3_key)
-
             # set key value
             self.retry(key.set_contents_from_filename, args=[source], error_level=FATAL),
-
-            # key.make_public() may lead to race conditions, because
-            # it doesn't pass version_id, so it may not set permissions
-            bucket.set_canned_acl(acl_str='public-read', key_name=s3_key,
-                                  version_id=key.version_id)
         else:
             if not get_hash(key.get_contents_as_string()) == get_hash(open(source).read()):
                 # for now, let's halt. If necessary, we can revisit this and allow for overwrites
                 #  to the same buildnum release with different bits
                 self.fatal("`{}` already exists with different checksum.".format(s3_key))
             self.log("`{}` has the same MD5 checksum, not uploading".format(s3_key))
 
     def scan_bits(self):