diff --git a/pkgs/development/python-modules/exchangelib/default.nix b/pkgs/development/python-modules/exchangelib/default.nix
index 0f6e58d0cb2cb..b1898d0e917f2 100644
--- a/pkgs/development/python-modules/exchangelib/default.nix
+++ b/pkgs/development/python-modules/exchangelib/default.nix
@@ -1,12 +1,10 @@
 {
   lib,
-  backports-zoneinfo,
   buildPythonPackage,
   cached-property,
   defusedxml,
   dnspython,
   fetchFromGitHub,
-  flake8,
   isodate,
   lxml,
   oauthlib,
@@ -20,7 +18,6 @@
   requests-ntlm,
   requests-gssapi,
   requests-oauthlib,
-  requests-kerberos,
   requests-mock,
   setuptools,
   tzdata,
@@ -29,16 +26,16 @@
 
 buildPythonPackage rec {
   pname = "exchangelib";
-  version = "5.4.3";
+  version = "5.5.0";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "ecederstrand";
     repo = "exchangelib";
     rev = "refs/tags/v${version}";
-    hash = "sha256-SX5F0OXKdxA2HoDwvCe4M7RftdjUEdQuFbxRyuABC4E=";
+    hash = "sha256-nu1uhsUc4NhVE08RtaD8h6KL6DFzA8mPcCJ/cX2UYME=";
   };
 
   pythonRelaxDeps = [ "defusedxml" ];
@@ -56,10 +53,9 @@ buildPythonPackage rec {
     requests
     requests-ntlm
     requests-oauthlib
-    requests-kerberos
     tzdata
     tzlocal
-  ] ++ lib.optionals (pythonOlder "3.9") [ backports-zoneinfo ];
+  ];
 
   optional-dependencies = {
     complete = [
@@ -73,7 +69,6 @@ buildPythonPackage rec {
   };
 
   nativeCheckInputs = [
-    flake8
     psutil
     python-dateutil
     pytz