diff --git a/pkgs/development/python-modules/cftime/default.nix b/pkgs/development/python-modules/cftime/default.nix
index 4c11267b041d..d4f59d417714 100644
--- a/pkgs/development/python-modules/cftime/default.nix
+++ b/pkgs/development/python-modules/cftime/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "cftime";
-  version = "1.0.2.1";
+  version = "1.0.3.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1fxpvy3z0b3ga8ylr54ml7nxsfah2bh5azk43nb565rcka3x909c";
+    sha256 = "0362dhxbzk593walyjz30dll6y2y79wialik647cbwdsf3ad0x6x";
   };
 
   checkInputs = [ pytest coveralls pytestcov ];