diff --git a/pkgs/development/python-modules/arrow/default.nix b/pkgs/development/python-modules/arrow/default.nix
index 956dd5f40f2d..72bbdb7b977c 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 = "1.1.1";
+  version = "1.2.0";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "dee7602f6c60e3ec510095b5e301441bc56288cb8f51def14dcb3079f623823a";
+    sha256 = "16fc29bbd9e425e3eb0fef3018297910a0f4568f21116fc31771e2760a50e074";
   };
 
   postPatch = ''