Update data-structures

diff --git a/modules/data-structures b/modules/data-structures
index f5df85596a66ff4eebf6d77d4ee1f215d391d5a1..e6d20bcb851c1a37db2bcfddd149062ecade98a2 160000 (submodule)
--- a/modules/data-structures
+++ b/modules/data-structures
@@ -1 +1 @@
-Subproject commit f5df85596a66ff4eebf6d77d4ee1f215d391d5a1
+Subproject commit e6d20bcb851c1a37db2bcfddd149062ecade98a2