diff --git a/submodules/bctoolbox b/submodules/bctoolbox
index 8a1d19db3..a7778bc6f 160000
--- a/submodules/bctoolbox
+++ b/submodules/bctoolbox
@@ -1 +1 @@
-Subproject commit 8a1d19db312444b0288db7dd62119c982d8beb1e
+Subproject commit a7778bc6f0e2f7d8c491543ab8fd8d2faa4fec15