diff --git a/changelog.d/20231220_171731_fahad.khalid_fahad_cairn_12.md b/changelog.d/20231220_171731_fahad.khalid_fahad_cairn_12.md
new file mode 100644
index 0000000..7039974
--- /dev/null
+++ b/changelog.d/20231220_171731_fahad.khalid_fahad_cairn_12.md
@@ -0,0 +1 @@
+- 💥[Improvement] Convert `events.user_id` and `video_events.user_id` fields from Int64 to UInt64. (by @FahadKhalid210)
\ No newline at end of file
diff --git a/tutorcairn/templates/cairn/apps/clickhouse/migrations.d/0011_modify_events_type.sql b/tutorcairn/templates/cairn/apps/clickhouse/migrations.d/0011_modify_events_type.sql
new file mode 100644
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+++ b/tutorcairn/templates/cairn/apps/clickhouse/migrations.d/0011_modify_events_type.sql
@@ -0,0 +1,5 @@
+ALTER TABLE events 
+MODIFY COLUMN user_id UInt64;
+
+ALTER TABLE video_events 
+MODIFY COLUMN user_id UInt64;