Update Pygments version from externals.
diff --git a/Doc/Makefile b/Doc/Makefile
index 21ca0b7..917b8c8 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -29,7 +29,7 @@
 	fi
 	@if [ ! -d tools/pygments ]; then \
 	  echo "Checking out Pygments..."; \
-	  svn checkout $(SVNROOT)/external/Pygments-0.8.1/pygments tools/pygments; \
+	  svn checkout $(SVNROOT)/external/Pygments-0.9/pygments tools/pygments; \
 	fi
 
 update: checkout