diff --git a/package-lock.json b/package-lock.json
index 286caaa..1191bc2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
 			"dependencies": {
 				"@anthropic-ai/mcpb": "^2.1.2",
 				"@modelcontextprotocol/sdk": "^1.29.0",
-				"cdb-converter": "^0.3.0",
+				"cdb-converter": "^0.4.0",
 				"sql-query-identifier": "^3.1.1",
 				"sql.js": "^1.14.1",
 				"zod": "^4.4.3"
@@ -2289,9 +2289,9 @@
 			}
 		},
 		"node_modules/cdb-converter": {
-			"version": "0.3.0",
-			"resolved": "https://registry.npmjs.org/cdb-converter/-/cdb-converter-0.3.0.tgz",
-			"integrity": "sha512-8Jst9m+sVdamZb9jKxXfL217bFKvVuggY9A/ZtVmROUBaWAnmRcZdxSi+bbXMUgOspbHs3Wm+9P09Irwszm3fA==",
+			"version": "0.4.0",
+			"resolved": "https://registry.npmjs.org/cdb-converter/-/cdb-converter-0.4.0.tgz",
+			"integrity": "sha512-8iz+vOYA1FTosWJ7MP7C1EhApNoCJlZArNCotKYH/hDu+GInxeeNYwKZn6+rjWjMvZJt+MKxLBsrAk5xPjEe7Q==",
 			"license": "MIT",
 			"dependencies": {
 				"@types/sql.js": "^1.4.11",
diff --git a/package.json b/package.json
index c3c1902..2812924 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
 	"dependencies": {
 		"@anthropic-ai/mcpb": "^2.1.2",
 		"@modelcontextprotocol/sdk": "^1.29.0",
-		"cdb-converter": "^0.3.0",
+		"cdb-converter": "^0.4.0",
 		"sql-query-identifier": "^3.1.1",
 		"sql.js": "^1.14.1",
 		"zod": "^4.4.3"
diff --git a/src/cdb.ts b/src/cdb.ts
index a640614..de90329 100644
--- a/src/cdb.ts
+++ b/src/cdb.ts
@@ -135,7 +135,9 @@ export async function withCdb<T extends Record<string, unknown>>(
 
 		const SQL = await initSqlJs();
 		const cdbBuffer = await readFile(file.path);
-		db = cdbToSql(cdbBuffer, SQL);
+		db = cdbToSql(cdbBuffer, SQL, {
+			preciseTypes: true,
+		});
 
 		if (config.queryOnly ?? true) {
 			db.run("PRAGMA query_only = ON;");