diff --git a/types/yesql/index.d.ts b/types/yesql/index.d.ts
index 670a071b93..2f5065ecfd 100644
--- a/types/yesql/index.d.ts
+++ b/types/yesql/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for yesql 3.2
+// Type definitions for yesql 4.1
 // Project: https://github.com/pihvi/yesql#readme
 // Definitions by: Lluís Ulzurrun de Asanza Sáez <https://github.com/Sumolari>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
@@ -14,11 +14,16 @@ declare function readSqlFiles(
 
 declare namespace readSqlFiles {
     type AnyParams = Record<string, any>;
+    interface Options {
+        useNullForMissing?: boolean;
+    }
     function pg<TParams extends object = AnyParams>(
         query: string,
+        options?: Options
     ): (params: TParams) => { text: string; values: Array<TParams[keyof TParams]> };
     function mysql<TParams extends object = AnyParams>(
         query: string,
+        options?: Options
     ): (params: TParams) => { sql: string; values: Array<TParams[keyof TParams]> };
 }
 
diff --git a/types/yesql/yesql-tests.ts b/types/yesql/yesql-tests.ts
index a5e70fbee1..81347f9588 100644
--- a/types/yesql/yesql-tests.ts
+++ b/types/yesql/yesql-tests.ts
@@ -24,3 +24,6 @@ interface QueryParams {
 yesql.mysql<QueryParams>('')(); // $ExpectError
 yesql.mysql<QueryParams>('')({ id: 'string-id' }); // $ExpectError
 yesql.mysql<QueryParams>('')({ id: 123, name: 'foo' }); // $ExpectType { sql: string; values: (string | number)[]; }
+
+yesql.pg('', { useNullForMissing: true })({}); // $ExpectType { text: string; values: any[]; }
+yesql.pg('', { useNullForMissing: 1 })({}); // $ExpectError