Using method from inherited template parameter class

As shown in the code, I am inheriting the class BoldPen, obtained from the template parameter to another class Writer, and creating writer1 object.

My question is regarding the 'line of interest' marked in the code below. As it stands, the code compiles fine and works. However, if I remove the PenType:: scope, changing the line to just Write the code fails compilation with error

main.cpp: In member function ‘void Writer<PenType>::StartWriting()’:
main.cpp:17:11: error: there are no arguments to ‘Write’ that depend on a template parameter, so a declaration of ‘Write’ must be available [-fpermissive]
     Write();
           ^

From my understanding, shouldn't it compile fine since the BoldPen class is being inherited by Writer, which means it should see the Write method in its superclass BoldPen? Why is PenType:: required

#include <iostream>

struct BoldPen
{
  void Write()
  {
    std::cout << "Writing using a boldpen" << std::endl;
  }
};

template<class PenType>
class Writer : public PenType
{
public:
  void StartWriting()
  {
    PenType::Write();       //#####LINE OF INTEREST#####//
  }
};

int main()
{

  Writer<BoldPen> writer1;
  writer1.StartWriting();
  return 0;
}