diff --git a/pkgs/development/python-modules/nest-asyncio/default.nix b/pkgs/development/python-modules/nest-asyncio/default.nix
index 3dec538c6d3..a88c07c9968 100644
--- a/pkgs/development/python-modules/nest-asyncio/default.nix
+++ b/pkgs/development/python-modules/nest-asyncio/default.nix
@@ -5,13 +5,13 @@
 }:
 
 buildPythonPackage rec {
-  version = "1.2.0";
+  version = "1.2.1";
   pname = "nest_asyncio";
   disabled = !(pythonAtLeast "3.5");
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "f5b22dd23ee6195cea509c344d9ec34274f45bff078d8f18e9dc322dc74c6008";
+    sha256 = "7d4d7c1ca2aad0e5c2706d0222c8ff006805abfd05caa97e6127c8811d0f6adc";
   };
 
   meta = with stdenv.lib; {