diff --git a/pkgs/development/python-modules/imbalanced-learn/default.nix b/pkgs/development/python-modules/imbalanced-learn/default.nix
index b1e5e9197522..8a53e856b330 100644
--- a/pkgs/development/python-modules/imbalanced-learn/default.nix
+++ b/pkgs/development/python-modules/imbalanced-learn/default.nix
@@ -9,12 +9,12 @@
 
 buildPythonPackage rec {
   pname = "imbalanced-learn";
-  version = "0.9.0";
+  version = "0.9.1";
   disabled = isPy27; # scikit-learn>=0.21 doesn't work on python2
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "836a4c137cc3c10310d4f6cd5ec34600ff488d7f8c243a997c3f9b551c91d0b2";
+    sha256 = "sha256-ThT3rmB4tauEO3PDebKsULIHRGQV2cJDjIhdbLWv2WI=";
   };
 
   propagatedBuildInputs = [ scikit-learn ];