diff --git a/pkgs/development/python-modules/nest-asyncio/default.nix b/pkgs/development/python-modules/nest-asyncio/default.nix
index 102c41d0117e..12412860f880 100644
--- a/pkgs/development/python-modules/nest-asyncio/default.nix
+++ b/pkgs/development/python-modules/nest-asyncio/default.nix
@@ -5,16 +5,16 @@
 }:
 
 buildPythonPackage rec {
-  version = "1.2.2";
+  version = "1.2.3";
   pname = "nest_asyncio";
   disabled = !(pythonAtLeast "3.5");
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "06hw495yqg60j738jp3qaxryhyrs36lpgmblf1sm2m2c3mgm92p5";
+    sha256 = "0fznrg32rk6fmvpfdxwwhadh526gdjivmdifg2hiciil2gr8n1s3";
   };
 
-  # tests not packaged with source dist as of 1.2.2/1.2.2, and
+  # tests not packaged with source dist as of 1.2.3/1.2.3, and
   # can't check tests out of GitHub easily without specific commit IDs (no tagged releases)
   doCheck = false;
   pythonImportsCheck = [ "nest_asyncio" ];