diff --git a/caput/truncate.pyx b/caput/truncate.pyx
index ea40e30c..ed38215b 100644
--- a/caput/truncate.pyx
+++ b/caput/truncate.pyx
@@ -8,6 +8,9 @@ from cython.parallel import prange
 import numpy as np
 cimport numpy as cnp
 
+# Required for numpy 2.0 compatibility
+np.import_array()
+
 cdef extern from "truncate.hpp":
     inline int bit_truncate(int val, int err) nogil
 
diff --git a/caput/weighted_median.pyx b/caput/weighted_median.pyx
index 95be780c..0d3fca6e 100644
--- a/caput/weighted_median.pyx
+++ b/caput/weighted_median.pyx
@@ -12,6 +12,9 @@ from MedianTree cimport Tree, Data
 cimport numpy as np
 cimport cython
 
+# Required for numpy 2.0 compatibility
+np.import_array()
+
 # Define the fused types that can be used for the data or weights in the median routine
 ctypedef fused data_t:
     int