diff --git a/schema/postgres/visibility/versioned/v0.6/add_update_time.sql b/schema/postgres/visibility/versioned/v0.6/add_update_time.sql
index bee69652a28..b18f3818dff 100644
--- a/schema/postgres/visibility/versioned/v0.6/add_update_time.sql
+++ b/schema/postgres/visibility/versioned/v0.6/add_update_time.sql
@@ -1 +1 @@
-ALTER TABLE executions_visibility ADD update_time TIMESTAMP NULL;
\ No newline at end of file
+ALTER TABLE executions_visibility ADD update_time TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP;
\ No newline at end of file
diff --git a/schema/postgres/visibility/versioned/v0.7/add_shard_id.sql b/schema/postgres/visibility/versioned/v0.7/add_shard_id.sql
index 1157b6944cc..0686408d55e 100644
--- a/schema/postgres/visibility/versioned/v0.7/add_shard_id.sql
+++ b/schema/postgres/visibility/versioned/v0.7/add_shard_id.sql
@@ -1 +1 @@
-ALTER TABLE executions_visibility ADD shard_id INTEGER NULL;
\ No newline at end of file
+ALTER TABLE executions_visibility ADD shard_id INTEGER NULL DEFAULT -1;
\ No newline at end of file