diff --git a/cyarray/carray.pyx b/cyarray/carray.pyx
index 0c99f21..29cf108 100644
--- a/cyarray/carray.pyx
+++ b/cyarray/carray.pyx
@@ -33,6 +33,7 @@ from libc.stdlib cimport *
 from libc.stdint cimport uintptr_t
 
 cimport numpy as np
+np.import_array()
 
 import numpy as np
 
diff --git a/cyarray/carray.pyx.mako b/cyarray/carray.pyx.mako
index 4185424..cf75c31 100644
--- a/cyarray/carray.pyx.mako
+++ b/cyarray/carray.pyx.mako
@@ -42,6 +42,7 @@ from libc.stdlib cimport *
 from libc.stdint cimport uintptr_t
 
 cimport numpy as np
+np.import_array()
 
 import numpy as np
 
diff --git a/pyproject.toml b/pyproject.toml
index 6eb1fc9..5b68acd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 requires = [
     "wheel>=0.29.0",
     "setuptools>=42.0.0",
-    "oldest-supported-numpy",
+    "numpy",
     "Cython",
     "mako"
-]
\ No newline at end of file
+]