diff --git a/.gitmodules b/.gitmodules
index 4db353c..c25804c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,5 @@
 [submodule "blt"]
 	path = blt
 	url = ../../LLNL/blt.git
+	branch = release-v0.7.1
+
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a84768..92d9254 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project (Adiak
          LANGUAGES CXX C
          VERSION 0.4.1)
 
-set(BLT_CXX_STD "c++11" CACHE STRING "Version of C++ standard")
+set(BLT_CXX_STD "c++14" CACHE STRING "Version of C++ standard")
 
 if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
   set(CMAKE_INSTALL_LIBDIR lib)
diff --git a/blt b/blt
index 655aa8c..e783e30 160000
--- a/blt
+++ b/blt
@@ -1 +1 @@
-Subproject commit 655aa8c7987eca99d21408745dda1baa2de5de76
+Subproject commit e783e30f2823ee1a208f7f90741b41c1f5a08063