diff --git a/src/db/databaseUtil.ts b/src/db/databaseUtil.ts
index aca9933d..477b212f 100644
--- a/src/db/databaseUtil.ts
+++ b/src/db/databaseUtil.ts
@@ -255,7 +255,24 @@ export function generateInsertStatement(
   tableName: string,
 ): { sql: string; params: unknown[] } {
   const columns = Object.keys(model).filter((key) => model[key] !== undefined);
-  const values = Object.values(model).filter((value) => value !== undefined);
+  const values = Object.values(model)
+    .filter((value) => value !== undefined)
+    .map((value) => {
+      // Convert values to SQLite-compatible types
+      if (value === null || value === undefined) {
+        return null;
+      }
+      if (typeof value === 'object' && value !== null) {
+        // Convert objects and arrays to JSON strings
+        return JSON.stringify(value);
+      }
+      if (typeof value === 'boolean') {
+        // Convert boolean to integer (0 or 1)
+        return value ? 1 : 0;
+      }
+      // Numbers, strings, bigints, and buffers are already supported
+      return value;
+    });
   const placeholders = values.map(() => "?").join(", ");
   const insertSql = `INSERT INTO ${tableName} (${columns.join(", ")}) VALUES (${placeholders})`;
 
@@ -303,7 +320,18 @@ export function generateUpdateStatement(
 
   Object.entries(model).forEach(([key, value]) => {
     setClauses.push(`${key} = ?`);
-    params.push(value ?? null);
+    // Convert values to SQLite-compatible types
+    let convertedValue = value ?? null;
+    if (convertedValue !== null) {
+      if (typeof convertedValue === 'object') {
+        // Convert objects and arrays to JSON strings
+        convertedValue = JSON.stringify(convertedValue);
+      } else if (typeof convertedValue === 'boolean') {
+        // Convert boolean to integer (0 or 1)
+        convertedValue = convertedValue ? 1 : 0;
+      }
+    }
+    params.push(convertedValue);
   });
 
   if (setClauses.length === 0) {