Increased heap size in the library

diff --git a/rpp-lib b/rpp-lib
index 97fcf570d2fa6ec316e1a22be3b99446fba239a0..7518e2d62865494cc507982d331d43c61515868e 160000 (submodule)
--- a/rpp-lib
+++ b/rpp-lib
@@ -1 +1 @@
-Subproject commit 97fcf570d2fa6ec316e1a22be3b99446fba239a0
+Subproject commit 7518e2d62865494cc507982d331d43c61515868e