diff --git a/requirements.txt b/requirements.txt
index 2243ec942..5db0b8bb2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,6 @@ pytest
 wkw==0.1.0
 requests
 black
-cluster_tools==1.41
+cluster_tools==1.42
 natsort
 psutil
diff --git a/setup.py b/setup.py
index dfdd935dd..b42940b7f 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
         "pillow",
         "pyyaml",
         "wkw",
-        "cluster_tools==1.41",
+        "cluster_tools==1.42",
         "natsort",
     ],
     description="A cubing tool for webKnossos",