diff --git a/schema/mysql/upgrades/1.1.2.sql b/schema/mysql/upgrades/1.1.2.sql
new file mode 100644
index 000000000..9f5edd5fa
--- /dev/null
+++ b/schema/mysql/upgrades/1.1.2.sql
@@ -0,0 +1 @@
+UPDATE icingadb_schema SET timestamp = UNIX_TIMESTAMP(timestamp / 1000) * 1000 WHERE timestamp > 20000000000000000;