diff --git a/Gemfile.lock b/Gemfile.lock
index 0832f9ddd9..100e11d47e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
     attr_required (1.0.2)
     aws-eventstream (1.4.0)
     aws-partitions (1.1259.0)
-    aws-sdk-core (3.252.0)
+    aws-sdk-core (3.254.0)
       aws-eventstream (~> 1, >= 1.3.0)
       aws-partitions (~> 1, >= 1.992.0)
       aws-sigv4 (~> 1.9)
@@ -111,8 +111,8 @@ GEM
     aws-sdk-kms (1.129.0)
       aws-sdk-core (~> 3, >= 3.248.0)
       aws-sigv4 (~> 1.5)
-    aws-sdk-s3 (1.225.1)
-      aws-sdk-core (~> 3, >= 3.248.0)
+    aws-sdk-s3 (1.228.1)
+      aws-sdk-core (~> 3, >= 3.254.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.5)
     aws-sigv4 (1.12.1)
diff --git a/app/lib/admin/metrics/measure/new_users_measure.rb b/app/lib/admin/metrics/measure/new_users_measure.rb
index 32057154d6..87848daa0c 100644
--- a/app/lib/admin/metrics/measure/new_users_measure.rb
+++ b/app/lib/admin/metrics/measure/new_users_measure.rb
@@ -27,7 +27,7 @@ class Admin::Metrics::Measure::NewUsersMeasure < Admin::Metrics::Measure::BaseMe
         WITH new_users AS (
           SELECT users.id
           FROM users
-          WHERE date_trunc('day', users.created_at)::date = axis.period
+          WHERE users.account_id >= (date_part('epoch', date_trunc('day', axis.period)::date) * 1000)::bigint << 16 AND users.account_id < ((date_part('epoch', date_trunc('day', axis.period)::date + ('1 day')::interval)) * 1000)::bigint << 16
         )
         SELECT count(*) FROM new_users
       ) AS value
diff --git a/app/lib/admin/metrics/retention.rb b/app/lib/admin/metrics/retention.rb
index 9bd47c58e4..e5ce549609 100644
--- a/app/lib/admin/metrics/retention.rb
+++ b/app/lib/admin/metrics/retention.rb
@@ -76,7 +76,7 @@ class Admin::Metrics::Retention
         WITH new_users AS (
           SELECT users.id
           FROM users
-          WHERE date_trunc(:frequency, users.created_at)::date = axis.cohort_period
+          WHERE users.account_id >= (date_part('epoch', date_trunc(:frequency, axis.cohort_period)::date) * 1000)::bigint << 16 AND users.account_id < ((date_part('epoch', date_trunc(:frequency, axis.cohort_period)::date + ('1' || :frequency)::interval)) * 1000)::bigint << 16
         ),
         retained_users AS (
           SELECT users.id
diff --git a/spec/lib/admin/metrics/measure/new_users_measure_spec.rb b/spec/lib/admin/metrics/measure/new_users_measure_spec.rb
index 5c03b67a18..9e973e2d0e 100644
--- a/spec/lib/admin/metrics/measure/new_users_measure_spec.rb
+++ b/spec/lib/admin/metrics/measure/new_users_measure_spec.rb
@@ -12,9 +12,17 @@ RSpec.describe Admin::Metrics::Measure::NewUsersMeasure do
   describe '#data' do
     context 'with user records' do
       before do
-        3.times { Fabricate :user, created_at: 2.days.ago }
-        2.times { Fabricate :user, created_at: 1.day.ago }
-        Fabricate :user, created_at: 0.days.ago
+        travel_to 2.days.ago do
+          # We specify the `id` because `travel_to` doesn't affect the database
+          3.times { Fabricate :account, id: Mastodon::Snowflake.id_at(Time.now.utc) }
+        end
+
+        travel_to 1.day.ago do
+          # We specify the `id` because `travel_to` doesn't affect the database
+          2.times { Fabricate :account, id: Mastodon::Snowflake.id_at(Time.now.utc) }
+        end
+
+        Fabricate :user
       end
 
       it 'returns correct user counts' do