diff --git a/regridding/_find_indices/_find_indices_brute.py b/regridding/_find_indices/_find_indices_brute.py
index fb01a1b..d0413fe 100644
--- a/regridding/_find_indices/_find_indices_brute.py
+++ b/regridding/_find_indices/_find_indices_brute.py
@@ -21,7 +21,7 @@ def _find_indices_brute(
     return result
 
 
-@numba.njit(parallel=True)
+@numba.njit(parallel=True, cache=True)
 def _find_indices_brute_1d(
     coordinates_input: tuple[np.ndarray],
     coordinates_output: tuple[np.ndarray],
diff --git a/regridding/_find_indices/_find_indices_searchsorted.py b/regridding/_find_indices/_find_indices_searchsorted.py
index ed6aa83..98c1a46 100644
--- a/regridding/_find_indices/_find_indices_searchsorted.py
+++ b/regridding/_find_indices/_find_indices_searchsorted.py
@@ -21,7 +21,7 @@ def _find_indices_searchsorted(
     return result
 
 
-@numba.njit(parallel=True)
+@numba.njit(parallel=True, cache=True)
 def _find_indices_searchsorted_1d(
     coordinates_input: tuple[np.ndarray],
     coordinates_output: tuple[np.ndarray],