diff --git a/hecl/CMakeLists.txt b/hecl/CMakeLists.txt
index 819b71d6a..abc151005 100644
--- a/hecl/CMakeLists.txt
+++ b/hecl/CMakeLists.txt
@@ -1,5 +1,5 @@
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
-cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR) # because of CMAKE_CXX_STANDARD
+cmake_minimum_required(VERSION 3.10 FATAL_ERROR) # because of c++17
 project(hecl)
 
 set(CMAKE_CXX_STANDARD 17)
diff --git a/hecl/extern/athena b/hecl/extern/athena
index 30391f335..a31882663 160000
--- a/hecl/extern/athena
+++ b/hecl/extern/athena
@@ -1 +1 @@
-Subproject commit 30391f335269ec0404be73e7c238525cce12b27c
+Subproject commit a31882663addce378048df76e59946b8abaf2811
diff --git a/hecl/extern/boo b/hecl/extern/boo
index b7646f7f9..73daeef6f 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit b7646f7f9a6fc3d4dfb8b3d0104d9020e52a99ed
+Subproject commit 73daeef6f18033e49e785498e68088170dfa3eed