diff --git a/.sqlx/query-526c4a9326db7f026eee15cca358943b0546fe56fc09204f1dfe90e2614f99b9.json b/.sqlx/query-526c4a9326db7f026eee15cca358943b0546fe56fc09204f1dfe90e2614f99b9.json
new file mode 100644
index 0000000..4a92d2d
--- /dev/null
+++ b/.sqlx/query-526c4a9326db7f026eee15cca358943b0546fe56fc09204f1dfe90e2614f99b9.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "\n        INSERT INTO addressobjectchangelog (principal, addressbook_id, object_id, \"operation\", synctoken)\n        VALUES (?1, ?2, ?3, ?4, (\n            SELECT synctoken FROM addressbooks WHERE (principal, id) = (?1, ?2)\n        ))",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": []
+  },
+  "hash": "526c4a9326db7f026eee15cca358943b0546fe56fc09204f1dfe90e2614f99b9"
+}
diff --git a/.sqlx/query-77ad562b6d78115ebb726d58cf1e4de69df169c1872cb452488ff8c43ed983a9.json b/.sqlx/query-77ad562b6d78115ebb726d58cf1e4de69df169c1872cb452488ff8c43ed983a9.json
new file mode 100644
index 0000000..15f7036
--- /dev/null
+++ b/.sqlx/query-77ad562b6d78115ebb726d58cf1e4de69df169c1872cb452488ff8c43ed983a9.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "\n        INSERT INTO calendarobjectchangelog (principal, cal_id, object_id, \"operation\", synctoken)\n        VALUES (?1, ?2, ?3, ?4, (\n            SELECT synctoken FROM calendars WHERE (principal, id) = (?1, ?2)\n        ))",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": []
+  },
+  "hash": "77ad562b6d78115ebb726d58cf1e4de69df169c1872cb452488ff8c43ed983a9"
+}
diff --git a/.sqlx/query-d0031fbbd6cf023e3f5ef8e6006723b7ff654b69699e4cbc8177941c9d414105.json b/.sqlx/query-d0031fbbd6cf023e3f5ef8e6006723b7ff654b69699e4cbc8177941c9d414105.json
deleted file mode 100644
index 13fbdb7..0000000
--- a/.sqlx/query-d0031fbbd6cf023e3f5ef8e6006723b7ff654b69699e4cbc8177941c9d414105.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "db_name": "SQLite",
-  "query": "\n        INSERT INTO addressobjectchangelog (principal, addressbook_id, object_id, operation, synctoken)\n        VALUES (?1, ?2, ?3, ?4, (\n            SELECT synctoken FROM addressbooks WHERE (principal, id) = (?1, ?2)\n        ))",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Right": 4
-    },
-    "nullable": []
-  },
-  "hash": "d0031fbbd6cf023e3f5ef8e6006723b7ff654b69699e4cbc8177941c9d414105"
-}
diff --git a/.sqlx/query-dbdbcd1f295ab098820574329d9fd1ddb4ee4d40c5e1f476b23ccc23321c18e2.json b/.sqlx/query-dbdbcd1f295ab098820574329d9fd1ddb4ee4d40c5e1f476b23ccc23321c18e2.json
deleted file mode 100644
index 0562047..0000000
--- a/.sqlx/query-dbdbcd1f295ab098820574329d9fd1ddb4ee4d40c5e1f476b23ccc23321c18e2.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "db_name": "SQLite",
-  "query": "\n        INSERT INTO calendarobjectchangelog (principal, cal_id, object_id, operation, synctoken)\n        VALUES (?1, ?2, ?3, ?4, (\n            SELECT synctoken FROM calendars WHERE (principal, id) = (?1, ?2)\n        ))",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Right": 4
-    },
-    "nullable": []
-  },
-  "hash": "dbdbcd1f295ab098820574329d9fd1ddb4ee4d40c5e1f476b23ccc23321c18e2"
-}
diff --git a/crates/store_sqlite/migrations/1_calendar.sql b/crates/store_sqlite/migrations/1_calendar.sql
index c3ddfe7..4dd10eb 100644
--- a/crates/store_sqlite/migrations/1_calendar.sql
+++ b/crates/store_sqlite/migrations/1_calendar.sql
@@ -32,7 +32,7 @@ CREATE TABLE calendarobjectchangelog (
     "operation" INTEGER NOT NULL,
     synctoken INTEGER DEFAULT 0 NOT NULL,
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-    PRIMARY KEY (principal, cal_id, created_at),
+    PRIMARY KEY (principal, cal_id, synctoken, created_at),
     FOREIGN KEY (principal, cal_id)
     REFERENCES calendars (principal, id) ON DELETE CASCADE
 );
diff --git a/crates/store_sqlite/migrations/2_addressbook.sql b/crates/store_sqlite/migrations/2_addressbook.sql
index 44d2a19..dac0d97 100644
--- a/crates/store_sqlite/migrations/2_addressbook.sql
+++ b/crates/store_sqlite/migrations/2_addressbook.sql
@@ -27,7 +27,7 @@ CREATE TABLE addressobjectchangelog (
     "operation" INTEGER NOT NULL,
     synctoken INTEGER DEFAULT 0 NOT NULL,
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-    PRIMARY KEY (principal, addressbook_id, created_at),
+    PRIMARY KEY (principal, addressbook_id, synctoken, created_at),
     FOREIGN KEY (principal, addressbook_id)
     REFERENCES addressbooks (principal, id) ON DELETE CASCADE
 );