diff --git a/pkgs/development/python-modules/certomancer/default.nix b/pkgs/development/python-modules/certomancer/default.nix
index 1fae518cb3e4..6022ed98849f 100644
--- a/pkgs/development/python-modules/certomancer/default.nix
+++ b/pkgs/development/python-modules/certomancer/default.nix
@@ -29,7 +29,7 @@
 
 buildPythonPackage rec {
   pname = "certomancer";
-  version = "0.12.3";
+  version = "0.13.0";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -38,7 +38,7 @@ buildPythonPackage rec {
     owner = "MatthiasValvekens";
     repo = "certomancer";
     tag = "v${version}";
-    hash = "sha256-2BjLoGUWU0RaWVI9JA3s/Hf5aVtmv8hn+fB2jkWdQNY=";
+    hash = "sha256-2/qTTN/UuSMHjkSsOs/KbfzKLBjJSLHY51XtgQ6x1Wo=";
   };
 
   build-system = [