diff --git a/lib/common/grid_util/AffinityResourceControl.cc b/lib/common/grid_util/AffinityResourceControl.cc
index ce6672d..6c2360a 100644
--- a/lib/common/grid_util/AffinityResourceControl.cc
+++ b/lib/common/grid_util/AffinityResourceControl.cc
@@ -5,6 +5,7 @@
 #include "NumaUtil.h"
 #include "ShmAffinityInfo.h"
 
+#include <algorithm> // sort
 #include <iostream> // debug
 #include <unistd.h> // getpid()
 #include <unordered_set>
diff --git a/lib/common/grid_util/BinPacketDictionary.h b/lib/common/grid_util/BinPacketDictionary.h
index d7e6bf5..50da2b6 100644
--- a/lib/common/grid_util/BinPacketDictionary.h
+++ b/lib/common/grid_util/BinPacketDictionary.h
@@ -5,6 +5,7 @@
 #include <scene_rdl2/render/cache/ValueContainerDequeue.h>
 #include <scene_rdl2/render/cache/ValueContainerEnqueue.h>
 
+#include <functional>
 #include <string>
 
 namespace scene_rdl2 {
diff --git a/mod/python/py_scene_rdl2/CMakeLists.txt b/mod/python/py_scene_rdl2/CMakeLists.txt
index a36f8f3..aa9873e 100644
--- a/mod/python/py_scene_rdl2/CMakeLists.txt
+++ b/mod/python/py_scene_rdl2/CMakeLists.txt
@@ -13,7 +13,6 @@ endif()
 find_package(Python COMPONENTS Interpreter Development)
 find_package(Boost REQUIRED
   COMPONENTS
-    system
     "${BOOST_PYTHON_COMPONENT_NAME}"
     date_time
     chrono)
@@ -66,7 +65,6 @@ target_include_directories(${component} SYSTEM
 
 target_link_libraries(${component}
     PRIVATE
-        Boost::system
         Boost::${BOOST_PYTHON_COMPONENT_NAME}
         Boost::date_time
         Boost::chrono