diff --git a/go/vt/schemadiff/schema_test.go b/go/vt/schemadiff/schema_test.go
index 0913b9a1165..fd553e48016 100644
--- a/go/vt/schemadiff/schema_test.go
+++ b/go/vt/schemadiff/schema_test.go
@@ -844,8 +844,8 @@ func TestMassiveSchema(t *testing.T) {
 				id                    int              NOT NULL AUTO_INCREMENT,
 				workflow              varbinary(1000)  DEFAULT NULL,
 				source                mediumblob       NOT NULL,
-				pos                   varbinary(10000) NOT NULL,
-				stop_pos              varbinary(10000) DEFAULT NULL,
+				pos                   longblob         NOT NULL,
+				stop_pos              longblob         DEFAULT NULL,
 				max_tps               bigint           NOT NULL,
 				max_replication_lag   bigint           NOT NULL,
 				cell                  varbinary(1000)  DEFAULT NULL,
diff --git a/go/vt/sidecardb/schema/vreplication/schema_version.sql b/go/vt/sidecardb/schema/vreplication/schema_version.sql
index 2b7cbc08dec..724d47819e5 100644
--- a/go/vt/sidecardb/schema/vreplication/schema_version.sql
+++ b/go/vt/sidecardb/schema/vreplication/schema_version.sql
@@ -17,7 +17,7 @@ limitations under the License.
 CREATE TABLE IF NOT EXISTS schema_version
 (
     id           INT NOT NULL AUTO_INCREMENT,
-    pos          VARBINARY(10000) NOT NULL,
+    pos          LONGBLOB         NOT NULL,
     time_updated BIGINT(20)       NOT NULL,
     ddl          BLOB DEFAULT NULL,
     schemax      LONGBLOB         NOT NULL,
diff --git a/go/vt/sidecardb/schema/vreplication/vreplication.sql b/go/vt/sidecardb/schema/vreplication/vreplication.sql
index ce9badfd98f..9f1bf6c8596 100644
--- a/go/vt/sidecardb/schema/vreplication/vreplication.sql
+++ b/go/vt/sidecardb/schema/vreplication/vreplication.sql
@@ -19,8 +19,8 @@ CREATE TABLE IF NOT EXISTS vreplication
     `id`                    int              NOT NULL AUTO_INCREMENT,
     `workflow`              varbinary(1000)           DEFAULT NULL,
     `source`                mediumblob       NOT NULL,
-    `pos`                   varbinary(10000) NOT NULL,
-    `stop_pos`              varbinary(10000)          DEFAULT NULL,
+    `pos`                   longblob         NOT NULL,
+    `stop_pos`              longblob                  DEFAULT NULL,
     `max_tps`               bigint           NOT NULL,
     `max_replication_lag`   bigint           NOT NULL,
     `cell`                  varbinary(1000)           DEFAULT NULL,