diff --git a/km3io/tools.py b/km3io/tools.py
index 11b7b419d31b0477a3cd32408d961da7777eb071..044f17d149bc646c95c9a67e2e6cb5f29c1b96e2 100644
--- a/km3io/tools.py
+++ b/km3io/tools.py
@@ -2,7 +2,6 @@
 import numba as nb
 import numpy as np
 import awkward as ak
-import uproot3 as uproot
 
 from km3io.definitions import reconstruction as krec
 from km3io.definitions import trigger as ktrg
@@ -10,10 +9,6 @@ from km3io.definitions import fitparameters as kfit
 from km3io.definitions import w2list_genhen as kw2gen
 from km3io.definitions import w2list_gseagen as kw2gsg
 
-# 110 MB based on the size of the largest basket found so far in km3net
-BASKET_CACHE_SIZE = 110 * 1024 ** 2
-BASKET_CACHE = uproot.cache.ThreadSafeArrayCache(BASKET_CACHE_SIZE)
-
 
 class cached_property:
     """A simple cache decorator for properties."""