diff --git a/schema/mysql/upgrades/dependencies.sql b/schema/mysql/upgrades/dependencies.sql
new file mode 100644
index 000000000..bbfb38c0c
--- /dev/null
+++ b/schema/mysql/upgrades/dependencies.sql
@@ -0,0 +1,58 @@
+CREATE TABLE `dependency` (
+  `id` binary(20) NOT NULL,
+  `name` text NOT NULL,
+  `display_name` text NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
+
+CREATE TABLE `dependency_state` (
+  `id` binary(20) NOT NULL,
+  `dependency_id` binary(20) NOT NULL,
+  `failed` enum('n', 'y') NOT NULL,
+  UNIQUE INDEX `dependency_state_dependency_id_uindex` (dependency_id),
+  KEY `dependency_state_dependency_id_fk` (`dependency_id`),
+  CONSTRAINT `dependency_state_dependency_id_fk` FOREIGN KEY (`dependency_id`) REFERENCES `dependency` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
+
+CREATE TABLE `redundancy_group` (
+  `id` binary(20) NOT NULL,
+  `name` text NOT NULL,
+  `display_name` text NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
+
+CREATE TABLE `redundancy_group_state` (
+  `id` binary(20) NOT NULL,
+  `redundancy_group_id` binary(20) NOT NULL,
+  `failed` enum('n', 'y') NOT NULL,
+  `last_state_change` bigint unsigned NOT NULL,
+  UNIQUE INDEX `redundancy_group_state_redundancy_group_id_uindex` (redundancy_group_id),
+  KEY `redundancy_group_state_redundancy_group_id_fk` (`redundancy_group_id`),
+  CONSTRAINT `redundancy_group_state_redundancy_group_id_fk` FOREIGN KEY (`redundancy_group_id`) REFERENCES `redundancy_group` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
+
+CREATE TABLE `dependency_node` (
+  `id` binary(20) NOT NULL,
+  `host_id` binary(20) DEFAULT NULL,
+  `service_id` binary(20) DEFAULT NULL,
+  `redundancy_group_id` binary(20) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `dependency_node_host_id_service_id_uindex` (`host_id`,`service_id`),
+  KEY `dependency_node_redundancy_group_id_fk` (`redundancy_group_id`),
+  KEY `dependency_node_service_id_fk` (`service_id`),
+  CONSTRAINT `dependency_node_host_id_fk` FOREIGN KEY (`host_id`) REFERENCES `host` (`id`),
+  CONSTRAINT `dependency_node_redundancy_group_id_fk` FOREIGN KEY (`redundancy_group_id`) REFERENCES `redundancy_group` (`id`),
+  CONSTRAINT `dependency_node_service_id_fk` FOREIGN KEY (`service_id`) REFERENCES `service` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
+
+CREATE TABLE `dependency_edge` (
+  `to_node_id` binary(20) NOT NULL,
+  `from_node_id` binary(20) NOT NULL,
+  `dependency_id` binary(20) DEFAULT NULL,
+  UNIQUE KEY `dependency_edge_to_node_id_from_node_id_uindex` (`to_node_id`,`from_node_id`),
+  KEY `dependency_edge_dependency_node_id_fk_2` (`from_node_id`),
+  KEY `dependency_edge_dependency_id_fk` (`dependency_id`),
+  CONSTRAINT `dependency_edge_dependency_id_fk` FOREIGN KEY (`dependency_id`) REFERENCES `dependency` (`id`),
+  CONSTRAINT `dependency_edge_dependency_node_id_fk` FOREIGN KEY (`to_node_id`) REFERENCES `dependency_node` (`id`),
+  CONSTRAINT `dependency_edge_dependency_node_id_fk_2` FOREIGN KEY (`from_node_id`) REFERENCES `dependency_node` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ROW_FORMAT=DYNAMIC;
diff --git a/schema/mysql/upgrades/dependencies2.sql b/schema/mysql/upgrades/dependencies2.sql
new file mode 100644
index 000000000..364a137bd
--- /dev/null
+++ b/schema/mysql/upgrades/dependencies2.sql
@@ -0,0 +1,2 @@
+alter table redundancy_group_state
+    add last_state_change bigint unsigned not null;
diff --git a/schema/mysql/upgrades/dependencies3.sql b/schema/mysql/upgrades/dependencies3.sql
new file mode 100644
index 000000000..f67f42ad5
--- /dev/null
+++ b/schema/mysql/upgrades/dependencies3.sql
@@ -0,0 +1,11 @@
+ALTER TABLE host
+    ADD COLUMN affected_children int unsigned DEFAULT NULL AFTER check_retry_interval;
+
+ALTER TABLE host_state
+    ADD COLUMN affects_children enum('n', 'y') NOT NULL DEFAULT 'n' AFTER in_downtime;
+
+ALTER TABLE service
+    ADD COLUMN affected_children int unsigned DEFAULT NULL AFTER check_retry_interval;
+
+ALTER TABLE service_state
+    ADD COLUMN affects_children enum('n', 'y') NOT NULL DEFAULT 'n' AFTER in_downtime;