diff --git a/spec.bs b/spec.bs
index 27398236d..9a8c82d0b 100644
--- a/spec.bs
+++ b/spec.bs
@@ -389,7 +389,7 @@ This is detectable because it can change the set of fields that are read from th
 
       * |group|["{{GenerateBidInterestGroup/updateURL}}"] [=map/exists=].
     1. Set |interestGroup|'s [=interest group/additional bid key=] to |decodedKey|.
-1. If |interestGroup|'s [=interest group/estimated size=] > 1048576, then [=exception/throw=] a
+1. If |interestGroup|'s [=interest group/estimated size=] > 1048576 bytes, then [=exception/throw=] a
   {{TypeError}}.
 1. Let |p| be [=a new promise=].
 1. Let |queue| be the result of [=starting a new parallel queue=].
@@ -4427,7 +4427,7 @@ navigating to another page. Some implementations, such as Chromium, have chosen
       following conditions hold:
       * |ig|'s [=interest group/ads=] is not null, and |ig|'s [=interest group/additional bid key=]
         is not null;
-      * |ig|'s [=interest group/estimated size=] is greater than 50 KB.
+      * |ig|'s [=interest group/estimated size=] is greater than 1048576 bytes.
     1. Set |ig|'s [=interest group/next update after=] to the [=current wall time=] plus 24 hours.
     1. Set |ig|'s [=interest group/last updated=] to the [=current wall time=].
     1. [=list/Replace=] the [=interest group=] that has |ig|'s [=interest group/owner=] and