diff --git a/package.json b/package.json
index e2b20346a8..89a94af6ca 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,6 @@
     "ui/tree",
     "ui/@types/defer-promise",
     "ui/@types/lichess",
-    "ui/@types/lichess-jquery",
-    "ui/@types/mithril"
+    "ui/@types/lichess-jquery"
   ]
 }
diff --git a/ui/@types/mithril/index.d.ts b/ui/@types/mithril/index.d.ts
deleted file mode 100644
index 5a38a59831..0000000000
--- a/ui/@types/mithril/index.d.ts
+++ /dev/null
@@ -1,56 +0,0 @@
-declare namespace Mithril {
-  interface Property<T> {
-    (): T;
-    (v: T): void;
-  }
-
-  type Renderable = Array<VirtualElement | string | null | undefined> |
-                    VirtualElement | string | null | undefined;
-
-  interface Static {
-    (tag: string): VirtualElement;
-    (tag: string, attrs: Attributes): VirtualElement;
-    (tag: string, attrs: Attributes, ...children: Renderable[]): VirtualElement;
-    (tag: string, ...children: Renderable[]): VirtualElement;
-
-    prop<T>(d: T): Property<T>;
-
-    module<T>(el: Element, module: Module<T>): void;
-
-    startComputation(): void;
-    endComputation(): void;
-
-    redraw: Redraw;
-  }
-
-  type Config = (el: Element, isUpdate: boolean, ctx: any, vdom: VirtualElement) => void;
-
-  interface Attributes {
-    class?: string;
-    className?: string;
-    config?: Config;
-    key?: string | number;
-    [property: string]: any;
-  }
-
-  interface Module<T> {
-    controller(): T;
-    view(ctrl: T): Renderable;
-  }
-
-  type RedrawStrategy = 'all' | 'diff' | 'none';
-
-  interface Redraw {
-    (forceSync?: boolean): void;
-    strategy(strategy: RedrawStrategy): void;
-  }
-
-  interface VirtualElement {
-  }
-}
-
-
-declare module "mithril" {
-  const m: Mithril.Static;
-  export = m;
-}
diff --git a/ui/@types/mithril/package.json b/ui/@types/mithril/package.json
deleted file mode 100644
index 471fa284b8..0000000000
--- a/ui/@types/mithril/package.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "name": "@types/mithril",
-  "version": "1.0.0",
-  "author": "Thibault Duplessis",
-  "license": "AGPL-3.0"
-}