Create foreign key on tiny interger

How could create a foreign key with tiny integer? This is what I have tried, but the migration still saying that the data type is incompatible.

    Schema::create('equipment_types', function (Blueprint $table) {
        $table->tinyIncrements('id');
        $table->string('description');
        $table->timestamps();
    });

and then this on the other table,

    Schema::create('equipment', function (Blueprint $table) {
        $table->id();
        $table->timestamps();
        $table->string('description');
        
        $table->tinyInteger('equipment_type_id')->unsigned();
        $table->foreign('equipment_type_id')->references('id')->on('equipment')->onUpdate('cascade');

    });