diff --git a/pkgs/development/python-modules/nest-asyncio/default.nix b/pkgs/development/python-modules/nest-asyncio/default.nix
index faa015d85f31..995641eb9253 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 = "1.5.5";
+  version = "1.5.6";
   pname = "nest_asyncio";
   disabled = !(pythonAtLeast "3.5");
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-5EIpHNlCaYvmGYI6F6hqV1nqvh+GEwhHkN4Yn+nhbWU=";
+    sha256 = "sha256-0mfMH/eUQD999pKWTR0qP6lBj/6io/aFmkOf9IL+8pA=";
   };
 
   # tests not packaged with source dist as of 1.3.2/1.3.2, and