diff --git a/INSTALL.md b/INSTALL.md
index 0fdef238e..ea9a6eb21 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -37,7 +37,7 @@ Build dependencies are:
 Mapnik Core depends on:
 
  * Boost
-    - >= 1.47 is recommended
+    - >= 1.46 is recommended
     - >= 1.45.x is required if compiling with clang++
     - >= 1.42.x works on most systems and most compilers
     - These libraries are required:
diff --git a/include/mapnik/version.hpp b/include/mapnik/version.hpp
index dd69d20bd..b02f6ecad 100644
--- a/include/mapnik/version.hpp
+++ b/include/mapnik/version.hpp
@@ -23,6 +23,6 @@
 #ifndef MAPNIK_VERSION_HPP
 #define MAPNIK_VERSION_HPP
 
-#define MAPNIK_VERSION 200000
+#define MAPNIK_VERSION 200100
 
 #endif // MAPNIK_VERSION_HPP