diff --git a/types/keyv/index.d.ts b/types/keyv/index.d.ts
index 11e1895c9a..9d0e2c6404 100644
--- a/types/keyv/index.d.ts
+++ b/types/keyv/index.d.ts
@@ -10,9 +10,9 @@ interface KeyvOptions {
     /** Namespace for the current instance. */
     namespace?: string;
     /** A custom serialization function. */
-    serialize: (data: any) => string;
+    serialize?: (data: any) => string;
     /** A custom deserialization function. */
-    deserialize: (data: string) => any;
+    deserialize?: (data: string) => any;
     /** The connection string URI. */
     uri?: string;
     /** The storage adapter instance to be used by Keyv. */
@@ -24,6 +24,10 @@ interface KeyvOptions {
 }
 
 declare class Keyv extends NodeJS.EventEmitter {
+    /**
+     * @param opts The options object is also passed through to the storage adapter. Check your storage adapter docs for any extra options.
+     */
+    constructor(opts?: KeyvOptions);
     /**
      * @param uri The connection string URI.
      *
@@ -31,10 +35,6 @@ declare class Keyv extends NodeJS.EventEmitter {
      * @param opts The options object is also passed through to the storage adapter. Check your storage adapter docs for any extra options.
      */
     constructor(uri?: string, opts?: KeyvOptions);
-    /**
-     * @param opts The options object is also passed through to the storage adapter. Check your storage adapter docs for any extra options.
-     */
-    constructor(opts?: KeyvOptions);
     /** Returns the value. */
     get(key: string): Promise<any>;
     /**
diff --git a/types/keyv/keyv-tests.ts b/types/keyv/keyv-tests.ts
index fc0c2f3ff1..7ee4cac90e 100644
--- a/types/keyv/keyv-tests.ts
+++ b/types/keyv/keyv-tests.ts
@@ -1,5 +1,10 @@
 import Keyv = require("keyv");
 
+new Keyv({
+    uri: 'redis://user:pass@localhost:6379',
+    namespace: "redis"
+});
+
 new Keyv('mongodb://user:pass@localhost:27017/dbname');
 new Keyv('redis://user:pass@localhost:6379');
 new Keyv('sqlite://path/to/database.sqlite');