diff --git a/pkgs/development/python-modules/arrow/default.nix b/pkgs/development/python-modules/arrow/default.nix
index d47dd61c3d47..956dd5f40f2d 100644
--- a/pkgs/development/python-modules/arrow/default.nix
+++ b/pkgs/development/python-modules/arrow/default.nix
@@ -12,13 +12,13 @@
 
 buildPythonPackage rec {
   pname = "arrow";
-  version = "1.1.0";
+  version = "1.1.1";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1n2vzyrirfj7fp0zn6iipm3i8bch0g4m14z02nrvlyjiyfmi7zmq";
+    sha256 = "dee7602f6c60e3ec510095b5e301441bc56288cb8f51def14dcb3079f623823a";
   };
 
   postPatch = ''