diff --git a/requirements.txt b/requirements.txt
index d8655d4a2..efcfcf5d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pytest
 wkw==0.1.1
 requests
 black==19.3b0
-cluster_tools==1.44
+cluster_tools==1.45
 natsort
 psutil
 nibabel
diff --git a/setup.py b/setup.py
index d50d31ba4..4a8d04b5a 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
         "pillow",
         "pyyaml",
         "wkw",
-        "cluster_tools==1.44",
+        "cluster_tools==1.45",
         "natsort",
     ],
     description="A cubing tool for webKnossos",