diff --git a/Code/Demos/boost/numpy/linalg.cpp b/Code/Demos/boost/numpy/linalg.cpp
index 2195565fc..9c948e12d 100644
--- a/Code/Demos/boost/numpy/linalg.cpp
+++ b/Code/Demos/boost/numpy/linalg.cpp
@@ -5,7 +5,7 @@
 #include <boost/python.hpp>
 #include <boost/python/numeric.hpp>
 #define PY_ARRAY_UNIQUE_SYMBOL RD_array_API
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 
 namespace python = boost::python;
 
diff --git a/Code/GraphMol/Depictor/Wrap/rdDepictor.cpp b/Code/GraphMol/Depictor/Wrap/rdDepictor.cpp
index 3d7ed38b8..9b7f7dbca 100644
--- a/Code/GraphMol/Depictor/Wrap/rdDepictor.cpp
+++ b/Code/GraphMol/Depictor/Wrap/rdDepictor.cpp
@@ -11,7 +11,7 @@
 #include <RDBoost/python.h>
 
 #define PY_ARRAY_UNIQUE_SYMBOL Depictor_array_API
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <RDBoost/Wrap.h>
 #include <RDBoost/import_array.h>
 
diff --git a/Code/GraphMol/ShapeHelpers/Wrap/rdShapeHelpers.cpp b/Code/GraphMol/ShapeHelpers/Wrap/rdShapeHelpers.cpp
index 5fcc83768..4a22659cf 100644
--- a/Code/GraphMol/ShapeHelpers/Wrap/rdShapeHelpers.cpp
+++ b/Code/GraphMol/ShapeHelpers/Wrap/rdShapeHelpers.cpp
@@ -10,7 +10,7 @@
 //
 #define PY_ARRAY_UNIQUE_SYMBOL rdshapehelpers_array_API
 #include <RDBoost/python.h>
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <GraphMol/ROMol.h>
 #include <RDBoost/Wrap.h>
 #include <RDBoost/import_array.h>
diff --git a/Code/GraphMol/Wrap/rdmolops.cpp b/Code/GraphMol/Wrap/rdmolops.cpp
index e52c5fe1a..e096f9441 100644
--- a/Code/GraphMol/Wrap/rdmolops.cpp
+++ b/Code/GraphMol/Wrap/rdmolops.cpp
@@ -12,7 +12,7 @@
 #include "rdmolops.h"
 #include <RDBoost/python.h>
 
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 
 #include <RDGeneral/types.h>
 
diff --git a/Code/ML/InfoTheory/Wrap/rdInfoTheory.cpp b/Code/ML/InfoTheory/Wrap/rdInfoTheory.cpp
index c0e6c14a2..42aaf39d1 100644
--- a/Code/ML/InfoTheory/Wrap/rdInfoTheory.cpp
+++ b/Code/ML/InfoTheory/Wrap/rdInfoTheory.cpp
@@ -9,7 +9,7 @@
 //
 #define PY_ARRAY_UNIQUE_SYMBOL rdinfotheory_array_API
 #include <RDBoost/Wrap.h>
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <RDBoost/import_array.h>
 #include <ML/InfoTheory/InfoBitRanker.h>
 #include <ML/InfoTheory/InfoGainFuncs.h>
diff --git a/Code/SimDivPickers/Wrap/HierarchicalClusterPicker.cpp b/Code/SimDivPickers/Wrap/HierarchicalClusterPicker.cpp
index 57828aa1f..6434db237 100644
--- a/Code/SimDivPickers/Wrap/HierarchicalClusterPicker.cpp
+++ b/Code/SimDivPickers/Wrap/HierarchicalClusterPicker.cpp
@@ -13,7 +13,7 @@
 #include <RDBoost/python.h>
 
 #include <boost/python/numeric.hpp>
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <RDBoost/Wrap.h>
 
 #include <SimDivPickers/DistPicker.h>
diff --git a/Code/SimDivPickers/Wrap/MaxMinPicker.cpp b/Code/SimDivPickers/Wrap/MaxMinPicker.cpp
index a3d3b8051..3427cd126 100644
--- a/Code/SimDivPickers/Wrap/MaxMinPicker.cpp
+++ b/Code/SimDivPickers/Wrap/MaxMinPicker.cpp
@@ -13,7 +13,7 @@
 #include <RDBoost/python.h>
 #include <RDBoost/Wrap.h>
 #include <boost/python/numeric.hpp>
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <map>
 
 #include <DataStructs/BitVects.h>
diff --git a/Code/SimDivPickers/Wrap/rdSimDivPickers.cpp b/Code/SimDivPickers/Wrap/rdSimDivPickers.cpp
index 61bc52873..f417b91f3 100644
--- a/Code/SimDivPickers/Wrap/rdSimDivPickers.cpp
+++ b/Code/SimDivPickers/Wrap/rdSimDivPickers.cpp
@@ -10,7 +10,7 @@
 //
 #define PY_ARRAY_UNIQUE_SYMBOL rdpicker_array_API
 #include <RDBoost/Wrap.h>
-#include "numpy/oldnumeric.h"
+#include <numpy/arrayobject.h>
 #include <RDBoost/import_array.h>
 
 namespace python = boost::python;