diff --git a/pkgs/development/python-modules/transitions/default.nix b/pkgs/development/python-modules/transitions/default.nix
index e50dec28ef50..24bfa14b8c4b 100644
--- a/pkgs/development/python-modules/transitions/default.nix
+++ b/pkgs/development/python-modules/transitions/default.nix
@@ -13,12 +13,12 @@
 
 buildPythonPackage rec {
   pname = "transitions";
-  version = "0.8.11";
+  version = "0.9.0";
   format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-eyDTKQbqTWDub2wfXcnJ8XiAJCXFsVUhPrDyXCd/BOQ=";
+    sha256 = "sha256-L1TRG9siV3nX5ykBHpOp+3F2aM49xl+NT1pde6L0jhA=";
   };
 
   propagatedBuildInputs = [