diff --git a/pkgs/development/python-modules/esper/default.nix b/pkgs/development/python-modules/esper/default.nix
index f07667238231..eefabc28e4a0 100644
--- a/pkgs/development/python-modules/esper/default.nix
+++ b/pkgs/development/python-modules/esper/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "esper";
-  version = "3.2";
+  version = "3.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "benmoran56";
     repo = "esper";
     rev = "refs/tags/v${version}";
-    hash = "sha256-oH3POxrQPge9BZHG5Y/n9/sWjiCA19mqpoCZfPM6BzA=";
+    hash = "sha256-DZAF2B40ulSn2MQadklT32Svcm1j0e/hIxrxISO07TI=";
   };
 
   build-system = [ flit-core ];