diff --git a/changelog.d/3961.bugfix b/changelog.d/3961.bugfix
new file mode 100644
index 0000000000000000000000000000000000000000..e46b5834aad03a886f76c7c672c7887b51b5f0de
--- /dev/null
+++ b/changelog.d/3961.bugfix
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+Fix errors due to concurrent monthly_active_user upserts