diff --git a/pkgs/development/python-modules/pytz/default.nix b/pkgs/development/python-modules/pytz/default.nix
index 0351840b3e0..dab8f479c04 100644
--- a/pkgs/development/python-modules/pytz/default.nix
+++ b/pkgs/development/python-modules/pytz/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pytz";
-  version = "2020.4";
+  version = "2020.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "3e6b7dd2d1e0a59084bcee14a17af60c5c562cdc16d828e8eba2e683d3a7e268";
+    sha256 = "180befebb1927b16f6b57101720075a984c019ac16b1b7575673bea42c6c3da5";
   };
 
   checkPhase = ''