diff --git a/docs/intro.rst b/docs/intro.rst
index b32aa8f..5455dd2 100644
--- a/docs/intro.rst
+++ b/docs/intro.rst
@@ -17,15 +17,14 @@
 necessary to support the oldest and buggiest of compiler specimens. Now that
 C++11-compatible compilers are widely available, this heavy machinery has
 become an excessively large and unnecessary dependency.
-
 Think of this library as a tiny self-contained version of Boost.Python with
 everything stripped away that isn't relevant for binding generation. Without
-comments, the core header files only require ~2.5K lines of code and depend on
-Python (2.7 or 3.x) and the C++ standard library. This compact implementation
-was possible thanks to some of the new C++11 language features (specifically:
-tuples, lambda functions and variadic templates). Since its creation, this
-library has grown beyond Boost.Python in many ways, leading to dramatically
-simpler binding code in many common situations.
+comments, the core header files only require ~4K lines of code and depend on
+Python (2.7 or 3.x, or PyPy2.7 >= 5.7) and the C++ standard library. This
+compact implementation was possible thanks to some of the new C++11 language
+features (specifically: tuples, lambda functions and variadic templates). Since
+its creation, this library has grown beyond Boost.Python in many ways, leading
+to dramatically simpler binding code in many common situations.
 
 Core features
 *************