diff --git a/README.md b/README.md
index 958d503..de363df 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ You can use this package to verify your API usage is compatible with a range of
 ```ts
 /// <reference types="nextcloud-typings" />
 
-declare var OC: Nextcloud.v16.OC | Nextcloud.v17.OC | Nextcloud.v18.OC | Nextcloud.v19.OC;
+declare var OC: Nextcloud.v17.OC | Nextcloud.v18.OC | Nextcloud.v19.OC | Nextcloud.v20.OC;
 
 OC.L10N.translate("app", "text")
 ```
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 6413817..d533175 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -2,3 +2,4 @@
 /// <reference path="v17/OC.d.ts" />
 /// <reference path="v18/OC.d.ts" />
 /// <reference path="v19/OC.d.ts" />
+/// <reference path="v20/OC.d.ts" />
diff --git a/lib/v20/OC.d.ts b/lib/v20/OC.d.ts
new file mode 100644
index 0000000..daad4ac
--- /dev/null
+++ b/lib/v20/OC.d.ts
@@ -0,0 +1,15 @@
+declare namespace Nextcloud.v20 {
+
+    interface OC extends Nextcloud.v19.OC {
+
+    }
+
+    interface OCP extends Nextcloud.v19.OCP {
+
+    }
+
+    interface WindowWithGlobals extends Nextcloud.Common.DayMonthConstants, Window {
+
+    }
+
+}