diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0d1af5c36..84b8215be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,11 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR) # because of CMAKE_CXX_STANDARD
+
 cmake_policy(SET CMP0054 NEW)
 project(urde)
+
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 if(MSVC)
   if(${CMAKE_GENERATOR} MATCHES "Visual Studio*")
     set(VS_DEFINES "/MP")
@@ -22,7 +27,7 @@ if(MSVC)
 
 else()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}\
-  -std=c++14 -Wno-multichar -fno-exceptions -Wno-narrowing -Wno-nullability-completeness -Werror=return-type")
+  -Wno-multichar -fno-exceptions -Wno-narrowing -Wno-nullability-completeness -Werror=return-type")
 
   if(APPLE)
     set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -flto=thin")
diff --git a/amuse b/amuse
index 3d56d5f0c..4e7c31849 160000
--- a/amuse
+++ b/amuse
@@ -1 +1 @@
-Subproject commit 3d56d5f0ccd10a558f0e47746cfd64126da09380
+Subproject commit 4e7c31849d5c9e1e274fa86fc74d3cbecf9e11de
diff --git a/hecl b/hecl
index e3516a055..da67582f2 160000
--- a/hecl
+++ b/hecl
@@ -1 +1 @@
-Subproject commit e3516a0557385b74c80668dd637b72ac944b15ba
+Subproject commit da67582f23559060c842c7daa75bec31efbc816f
diff --git a/jbus b/jbus
index b8c42676c..3c4a99fbe 160000
--- a/jbus
+++ b/jbus
@@ -1 +1 @@
-Subproject commit b8c42676ce9055bc48f9f7d75eb9f8964e6cfda3
+Subproject commit 3c4a99fbe87e8f043636a6c18bb791bb21a4d115
diff --git a/kabufuda b/kabufuda
index 03f16f7f4..2401875b9 160000
--- a/kabufuda
+++ b/kabufuda
@@ -1 +1 @@
-Subproject commit 03f16f7f48d1f9316eefcb8118496def40da47db
+Subproject commit 2401875b9a391a3126a5bbfee452bd4db4f3b014
diff --git a/nod b/nod
index 671e73c4b..55ed73b9b 160000
--- a/nod
+++ b/nod
@@ -1 +1 @@
-Subproject commit 671e73c4bc98a6a3f94c768a046b5489b524d63f
+Subproject commit 55ed73b9bb1ec76303a79fd07f80728acbe5a46b
diff --git a/specter b/specter
index 59f00d829..05b504a63 160000
--- a/specter
+++ b/specter
@@ -1 +1 @@
-Subproject commit 59f00d82970cd5a424775273988983d7ad0516a5
+Subproject commit 05b504a639d9b8e2d332403cec0c634c642095ea
diff --git a/visigen/CMakeLists.txt b/visigen/CMakeLists.txt
index 909f08ead..24c3be161 100644
--- a/visigen/CMakeLists.txt
+++ b/visigen/CMakeLists.txt
@@ -1,11 +1,14 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR) # because of CMAKE_CXX_STANDARD
 project(visigen)
 
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 if(MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc")
 else()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}\
-  -std=c++14 -Wno-multichar -fno-exceptions -Wno-narrowing -Wno-nullability-completeness -Werror=return-type")
+  -Wno-multichar -fno-exceptions -Wno-narrowing -Wno-nullability-completeness -Werror=return-type")
 endif()
 
 if(APPLE)