diff --git a/2022/change_change_time_T313070.py b/2022/change_change_time_T313070.py
new file mode 100644
index 0000000..91028dc
--- /dev/null
+++ b/2022/change_change_time_T313070.py
@@ -0,0 +1,41 @@
+from auto_schema.schema_change import SchemaChange
+
+# Copy this file and make adjustments
+
+# Set to None or 0 to skip downtiming
+downtime_hours = 2
+ticket = 'T313070'
+
+# Don't add set session sql_log_bin=0;
+command = """ALTER TABLE  /*_*/wb_changes CHANGE  change_time change_time BINARY(14) NOT NULL;"""
+
+# Set this to false if you don't want to run on all dbs
+# In that case, you have to specify the db in the command and check function.
+all_dbs = True
+
+# DO NOT FORGET to set the right port if it's not 3306
+# Use None instead of [] to get all direct replicas of master of active dc
+replicas = None
+section = 's8'
+
+# The check function must return true if schema change is applied
+# or not needed, False otherwise.
+
+def check(db):
+    query_res = db.run_sql('desc wb_changes;')
+    if not query_res:
+        # Dry run
+        return True
+    field_def = query_res.split('change_time')[1].split('\n')[0]
+    return 'varbinary' not in field_def.lower()
+
+schema_change = SchemaChange(
+    replicas=replicas,
+    section=section,
+    all_dbs=all_dbs,
+    check=check,
+    command=command,
+    ticket=ticket,
+    downtime_hours=downtime_hours
+)
+schema_change.run()